Vox Tone Stack Mods


There are no controls on the amp, just one input, and one output, meaning that everything is controlled by the guitar volume and tone knobs. True to form, the Top Boost channel delivers the legendary AC30 sound with a fully interactive tone stack. Not only is it completely usable through its entire rotation but on one end it can mimic other fuzzes like an Maestro FZ-1a or a Fuzzrite, while on the other end it sounds like a Fuzz Face, or more accurately a Vox Distortion Booster V8162. 3uF cap in parallel with C52 through a DPDT switch. It has to do with the amp opening up. Solder a feedback cap to V1's socket across pins 6 and 8 ( plate to cathode ). Classic Plexi - Bassman style 3-BAND TONE STACK with mid-scoop for extended flexibility in shaping your tone. no mods (yet!), a Vox Pathfinder 15 v9158, a Vox MINI3 Modeling Amp, and a AP2-AC tiny headphone amp for. DIY Layout Creator 2. Vintage Guitar Fuzz Pedal* Vox ToneBender* Excellent Working Condition! Up for auction is a nice mid 60's VOX Tone-Bender fuzz tone pedal. Using 2 el84s this amp has a similar smaller amp feel similar to it's cousin the AC15 but this circuit utilizes a EF86 and a ECF82 tube to give it a unique but still very "voxy" and british tone. So I looked into building a tone stack to give me some more control, and I found one that seems simple enough that I could build it!. Carr Mercury V 1x12 Combo Amp in Black tolex This is my third Carr amp. The Tone Cap is an incredibly useful tone-shaping tool. Jeff was able to diagnose and fix the AC30 in a couple of hours (merely a few bad caps and resistors in the vibrato circuit and tone stack), but the amp’s origins remained a mystery. I took my AC15CC1 to my audiophile friend for the often-discussed cap mod. Several years ago I was asked what my business model was for the amps, and I didn’t have to think long before giving an answer. Dirty Tones: In true Vox form, this is where this amp somewhat falls apart. Also most amps Blues Jr included operate in a preset range meaning that 0 is not truly 0 or off. Unlike the Fender tone stack you can achieve a mid hump by setting the treble and bass controls low. I can do the mods for you on a 24hr turnaround … you pay for shipping and insurance both ways, and supply fresh tubes (upon my recommendation) … $325us RUNDOWN OF THE CRATE V5-112 MODS : FX-SND OP-AMP BYPASS, FX-RTN OP-AMP BYPASS, BOOST MODE BYPASS, TWEEDed TONE STACK, CLEAN CHANNEL LEVEL BALANCE. View Blog Entries. The pre-amp doesn't necessarily have to be a 12AX7 ($ in NOS), but a 5751 (approx 70% of the gain of a 12AX7) or a 12AY7 (45% of the gain) work well at reducing the gain, giving slightly better. I thought the amp sounded good before I did the mod, but after the mod, it was like a totally different amp. Remove C13 with the pliers, carefully - cut remaining contacts. Like Fender, it never did manage to crack the giant stack market when it appeared in the 1960s and has always excelled instead at smaller, tasty, combos. What Vox is doing here with the "Bright/Thick" switch is going between the tone stack (which is indeed bright!) and a tonestack bypass. 3: 07/09/2006. DIY Layout Creator (DIYLC in short) is freeware drawing tool developed with help of a large online community of DIY electronics enthusiasts. that a new speaker has cured the Blues Junior's inherent boxy tone simply haven't heard a Blues Junior with proper tone stack and power supply mods. V847-C Wah Pedal. 3 N° 12 of the ToneQuest Report, issue of October 2002 (in english). And have not used it much. These les paul gibson are really awesome. Why spend 199 to 400 for a truly classic sounding 60s vox type WA all the tone is right here note colors will vary slightly as each one is hand decorated by GAGAN himself please message us with any questions you have, we are always glad to help and talk tone. The Tiny Tone is a single-ended class a amp using a special low voltage output pentode to achieve the real valve tone but at low power. A handle on the top makes it easily portable, while legs on the bottom help protect the exterior from scratches. The slightly anemic character of the Flat mode became the lean, compressed attack of a JCM800 but with a more powerful push that was HiWatt-y in its authority. Fender’s ‘65 Princeton Reverb reissue is the obvious choice if you just want classic Fender clean, but a real silverface Princeton Reverb, and many of its boutique clones and even kits, will set you back more than the cost of this ‘68 Custom. A sequence of evolution at Fender led up to the 1957 Bassman becoming the prototype for most amplifiers' Treble/Bass/Mids control knobs. Remember a passive tone stack CANNOT add to the signal, can only "take away" parts of the signal (when bass is at max, treble is being cut - when treble at max, bass is being cut). VOX MKIV Tonebender Description of the MKIV origin from the captain. I have an AC15C1 where I have done the bright cap mods, and tone stack changes, retubed with JJ's and installed a UK Celestion Blue. While the coefficients given here are for the 1959 Fender Bassman tone stack, most tone stacks (Fender, Marshall, Vox) are the same circuit with different component values for the capacitors and resistors, or different relationship between the controls and the resistances. This interconnectivity is key; operating one control may influence the behavior of the others. The cap values should vary from 250pF/500pF/ 1000pF or. All the ear-piercing highs are removed and replaced with silky smooth tones. The Saturator is an overdrive pedal kit that can cover a wide range of gain effects, transitioning smoothly from a massive clean boost to a warm and saturated distortion with the turn of a knob. The amp models also differ in the location of the controllable tone stacks in the signal chain: some models apply the tone stack filtering before the overdrive stages (Princeton, 60s Thrift), others after overdrive (57 Deluxe, Super Sonic), and some between multiple overdrive stages (Vox=British 60s, Deluxe Reverb). Modified DS-1 tone stack. A Head + A Cabinet = A Stack. Discussion in 'Amps' started by XIIIluckystars, Jan 31, 2014. To put a stack together, you need at least two boxes: the Head and a Cabinet. Could also insert a Vox TB stack for Baby Vox here. back to TubeAmps2. Changing this to the “vintage” 47pf value very slightly reduces the treble. My Crybaby was the only one he modified. The V847 is a Wah-Wah pedal designed by Lester Kushner and Brad Plunkett and released in 1967 by VOX. Before mod riffs 4:11 After mod riffs 5:28 Extension cab also has a Greenback and the tone is very similar to the. A couple weeks ago I got a Vox ac15c1. Deep Pull Switch on Bass controls. It's also been used in some commercial guitar amps, such as the Orange 120 MKII. CTS pots feature heavy duty construction and are specifically designed for top performance in guitar volume and tone circuits. There also was not a great deal of range in the. Not only is it completely usable through its entire rotation but on one end it can mimic other fuzzes like an Maestro FZ-1a or a Fuzzrite, while on the other end it sounds like a Fuzz Face, or more accurately a Vox Distortion Booster V8162. The Vox Valvetone V810 is a great sounding pedal with true bypass, discontinued in about 2000. I switched out the stock speaker for a Celestion Blue, added a Tone knob (which I think the new version has stock) and did some sort of bright mod? I've also read about a ac30 tone stack mod. 3 - Vox went with a 56pf treble cap in the tone stack (C16). Vox Night Train Mods. This mod adds a toggle or footswitch to bypass the tone knob circuit for a nice mid boost! If you would like your pedal modded or upgraded contact: Email: [email protected] For the mid boost thing, I changed several components of the tone stack. So I looked into building a tone stack to give me some more control, and I found one that seems simple enough that I could build it!. In fact, it is often referred to as the FMV (Fender Marshall Vox) tone stack circuit. The amp models also differ in the location of the controllable tone stacks in the signal chain: some models apply the tone stack filtering before the overdrive stages (Princeton, 60s Thrift), others after overdrive (57 Deluxe, Super Sonic), and some between multiple overdrive stages (Vox=British 60s, Deluxe Reverb). AC30 Custom Head 30 Watts RMS. Also check out what R-C-Filters do, muzique. The M AC10 Kemper Profile Pack seeks to capture the tone of the Morgan 10PM, a modern version of the old Vox AC10 amp. It's also been used in some commercial guitar amps, such as the Orange 120 MKII. If you’ve ever plugged into an AD30 or Rocker 32 Combo, you know we are capable of so much more. Rectifier - Sovtek. Now Im Going to have the bh15 modified IE tweaked up a bit 3 way carling added maybe dump the 7 watt switch for a db boost etc. Tone Stack - Makes a couple key changes that reduce the harshness of the top end and allows the amp to work better with effects pedals. Discussion in 'Amps' started by XIIIluckystars, Jan 31, 2014. These have 2 channels, 1 is a clean/bright channel, 2 removes the tone stack and adds a gain stage from another tube = crunchy, dirty. Unnervingly, if you see it enough it even begins to make sense. The 5W Epiphone Valve Junior has certainly created a stir among devotees of tube-based guitar amplifiers. Don't settle for a stock amp, when you can let out the Vox mojo with a few key mods from Fromel Electronics! WARNING: Performing these modifications WILL void the warranty on your amplifier. Getting Started Vox Amps - Updated 03-01-006 Ampeg Amps - Updated 03-03-06: Chasing Tone Tone Stack Calculator Download Here Wattkins Amp Building Forum. 3uF cap is in parallel with C52 for a total of 4. The diagram and the article describe the so-called FMV tone stack; the design used by Fender, Marshall, and Vox, and the hundreds who followed in their footsteps. View Forum Posts. Provide a good product at a fair price, treat the customer well and with honesty. "SKY" and "SSS" are the same tones as "Modern/Classic" from the original clean pedal. My Crybaby was the only one he modified. Tone Bank A No. Why spend 199 to 400 for a truly classic sounding 60s vox type WA all the tone is right here note colors will vary slightly as each one is hand decorated by GAGAN himself please message us with any questions you have, we are always glad to help and talk tone. II sounds wonderful, versatility enhanced. Fifteen watts is plenty for most situations and, when necessary, I can mic it to the PA while. The new caps have corrected values to open up the tone and get rid of that boxy sound. Remember a passive tone stack CANNOT add to the signal, can only "take away" parts of the signal (when bass is at max, treble is being cut - when treble at max, bass is being cut). I used a modified Vox tone stack since we only had bass treble and no mid control. The tone stack is slightly enhanced though to provide touch more modern overdrive tones as well as the vintage style fuzz. There are a ton of variations of this simple component – from the super basic models to more boutique “oil and paper” versions – but which one to choose?. This tone stack, like many others, has a very present low end. If i had 40€ to burn for a mod base, i’d get FX55B over DS-1 for sure. This kit addresses a number of issues with this amp by improving the reverb, reducing noise and hum and revoicing the tone stack. The James (or passive Baxandall) Treble/Bass tone stack allows more control with less quirks than the Fender/Marshall/Vox TMB tone. I do know it's cathode biased, so the tubes are just a swap out deal, no adjustment needed. It sounds beautiful, looks nice, and only weighs 40 lbs. AFAIK, the 3dB cutoff point of the Vox Tone Cut circuit is right where the high end of the Retro 30 and some other classic 12" Brit speaker comes back up at ~3. The Vox AC30 has always been considered a ‘pure’ Class A design, and is the first example offered when someone inquires about what a Class A amplifier ‘sounds like’. The ‘HRM Tone-stack Bypass Modification’ will not be needed on the Straight OTS non HRM models as there is no 2nd Marshall style tone-stack (post OD tone-stack), just the normal preamp. Note: The Baxandall or James tone stack must have a coupling cap between itself and a tube plate. When designing the DDS-2250V, I had the choice of the traditional Fender/Vox/Marshall tone stack using Bass/Mid/Treble controls, or using a passive version of the Baxandall Bass/Treble tone stack which is popular on hi-fi equipment. My Crybaby was the only one he modified. Re: Traynor YGM Tone Stack « Reply #10 on: November 19, 2015, 01:49:14 AM » That video was made with the volume at about 5 with an attenuator on very low (or high). The Bassman-style tone stack serves two purposes: to compensate for the treble and bass attenuation that inevitably occurs at each stage of amplification and to allow the guitar player to adjust the frequency response using bass control R B, middle-range control R M, and treble control R T. This kit is for those guitarists who want to experiment with spicing up the tone of their vintage silver-face or black-face Fender amp by modifying the tone stack components. This interconnectivity is key; operating one control may influence the behavior of the others. The three knob tone stack has been around since the beginning of bass amplifiers. All the ear-piercing highs are removed and replaced with silky smooth tones. I do know it's cathode biased, so the tubes are just a swap out deal, no adjustment needed. the preamp and the tone stack (the “Arrendondo Mod”) for more aggressive distortion character which also adds compression and cuts volume. Whether you're a session player or a wanna-be rock God, your tone is the most important thing. joe gagan wah 355 followers kalena_5 ( 2331 kalena_5's feedback score is 2331 ) 99. The Official Blackstar Amplification site, featuring Guitar Amplifiers, Guitar Amps, Effects Pedals, Merchandise, Dealers, Videos, Artist News. Deciem fueled the skin care boom. There are also some DIY mods that may be considered - 1) an effect loop kit, and 2) a DIY VF55 foot-switch. com Facebook. Here's an in-depth analysis of it. Playing off a "skyscraper" high rise theme, 1969 Vox literature introducing the Power Stak series indicated that "you have to pay extra for the ladder. Those that do are quite attached to it. Great highs and slightly reduced bass. Vintage ef86s I remember telling everyone how amazing they sound. Install a presence bypass or switch (I just bypassed it, a switch would be better) akavalve: Fender Champion 600 Presence Plus Mod. The goal is to provide a simple interface and enough power to let the user draw schematics, board/chassis layouts. This model features a vintage appearance and sound, boasting ten watts and a series of knobs to refine the tone further. The tone stack has an extended range. Deciem fueled the skin care boom. Others may offer different opinions, but usually it is a good idea to test this with a plan to reverse the mod if you don't like it. The two channel, TC15 is a 15 watt amp with two very different VOX derived channels. I have a Mercury Magnetics choke on order, not sure if changing the OT will make. There also was not a great deal of range in the. 1993 Match D-30 - Based on* a Matchless DC-30, the amp that really put Matchless on the map. The non-HRM amps don’t have this tone stack and as a result the overdrive is bit more open and full sounding. First, he took the cap out. Replacing the tone stack caps and phase inverter caps with higher quality makes for a difference. Tone Name Category 18 Voice Lead5 Vox/Choir 82 Unison Fat Mod Synth Lead 83 Oct Stack Synth Lead. Whether you're a session player or a wanna-be rock God, your tone is the most important thing. Soundwise, I'd already had the chance in the shop to A/B it against the AC15 with the Blue and knew that I would not miss the Tone Cut piece of the circuit. I play post-punk into space rock type stuff. Several years ago I was asked what my business model was for the amps, and I didn’t have to think long before giving an answer. The amp models also differ in the location of the controllable tone stacks in the signal chain: some models apply the tone stack filtering before the overdrive stages (Princeton, 60s Thrift), others after overdrive (57 Deluxe, Super Sonic), and some between multiple overdrive stages (Vox=British 60s, Deluxe Reverb). Whether you’re a session player or a wanna-be rock God, your tone is the most important thing. View this forum's RSS feed. VXT-1 Strobe Pedal Tuner. Example, turning up treble and mids on many amps will slightly increase volume. Hi all, I have been lurking on this forum. I'm telling you it's a totally different amp. A couple of mods I thought of were replacing the output pulldown resistor with a pot for volume control or maybe replace the resistor in the tone stack with a pot (and maybe a fixed resistor in series) for a sort of scoop/timbre control. Tools & Test Gear. I have considered (and may still do) BillM’s tone stack mod and upgrade the (Mexican) capacitors. People began to refer to these amplifiers as AC30TBs. so far really liking the results. CTS pots feature heavy duty construction and are specifically designed for top performance in guitar volume and tone circuits. Check out Vox AC30 Topboost - Reasons & Origins for some very interesting reading on the early AC30 circuits. Please login or register. Familiar controls for gain, presence, and the three-band tone stack let you dial in sounds quickly, while essential effects parameters are adjusted with a simple knob twist. The American Vox V846 and King Vox Wah sound good but lack the range and richness of tone of the others, probably due to the inductor and caps. To each his own. Tone Control Discussions Fully documented discussions of a variety of Tone controls in various situations. New nos '70s stack of dimes inductor vintage tone. This mod adds a toggle or footswitch to bypass the tone knob circuit for a nice mid boost! If you would like your pedal modded or upgraded contact: Email: [email protected] And of course there are endless combos for the caps in the tone stack. See B&H's vast selection of Effects Pedals for Guitars from top brands like Electro-Harmonix, BOSS, TC Electronic and SOURCE AUDIO, at the best prices. Tube set is a Chinese 12AX7B Preamp and a Sovtek EL84 Output. Wampler Distortion Plus Mods Gain pot is better use log pot (as original wampler mods) Tone stack is useless, I changed for a100k pot and 22n capacitor and it works very much better (22n to 68n works fine) Thanks! Reply Delete. I decided to try it but with a mini toggle so I could check the differences. The Treble Cut control may not necessarily be in the preamplifier stages. I found an article on taming the treble of brilliant channel of the big TV amps by reducing the value of the capacitor in the RC circuit off the second transistor's emitter to make it more like the normal channel. 1 tone stack caps tightens up the bottom end a bit and brings the mids forward. Also found in the master section is the traditional Vox tone cut control that was missing from the original Night Train, which can alleviate similar issues with high settings of the treble knob. Vox Amps - Updated 03-01-006 Ampeg Amps - Updated 03-03-06: Mesa Boogie Amps - Updated 03-03-06 Dumble Amps - Updated 01-01-00 Bargain Bin Amps - Updated 03-02-06 Post 70's Amps - Updated 03-03-06 PA/Hi-Fi Amp Conversions - * NEW *. Mod work done with Alpha Full-size Potentiometers(1Meg Gain, 250K Volume & 1Meg Tone Stack), Polypropylene and Silver Mica Caps. Finding the right amp for your bedroom and smaller clubs, can be a challenge. We listened. The M AC10 Kemper Profile Pack seeks to capture the tone of the Morgan 10PM, a modern version of the old Vox AC10 amp. Magnatone used it in a whole series of amps - the 260-A, M10-A, 460, and 480. Jeff was able to diagnose and fix the AC30 in a couple of hours (merely a few bad caps and resistors in the vibrato circuit and tone stack), but the amp's origins remained a mystery. I've used it with pleasing results in 3 amps now. *Insert Mini Cat tone control send & return connections where R6 was. The Bassman-style tone stack serves two purposes: to compensate for the treble and bass attenuation that inevitably occurs at each stage of amplification and to allow the guitar player to adjust the frequency response using bass control R B, middle-range control R M, and treble control R T. Few modern pedals are made with this inductor, and original stack of dimes are hard to find, but modern versions do exist. lead vox: Kelley Dickinson and works in isolation. 015 you can bring up the low mids to get a fuller sound. 01 mid cap greatly increases the low mids and the. Alternatives. The nasal attack of the Blues Driver’s tone stack was now a brash, Vox-y clarion call. This mod adds a toggle or footswitch to bypass the tone knob circuit for a nice mid boost! If you would like your pedal modded or upgraded contact: Email: [email protected] In late 1960, the amp was redesigned with three, rather than two, channels, each with two inputs, and offered with an optional Top Boost, or Brilliance, circuit, which introduced an extra gain stage and separate bass and treble. 375 x 24 thread for mounts. The Baxandall tone stack (also known as James) is a classic circuit more commonly found in hi-fi designs. We listened. Here's a sketch of the Blackface modded tone stack with mods in red On the main board, solder a 1uF cap across (in parallel with) R97. Useful treble control. DIY Layout Creator 2. The Vox AC30 has always been considered a ‘pure’ Class A design, and is the first example offered when someone inquires about what a Class A amplifier ‘sounds like’. But this ton stack will give you a 7dB drop in volume without the LPB1 gain section so you'll only want to use it with an effect that has plenty of volume already. There are other anomalies on mine compared with the factory circuit diagram, such as a 10nF snubber from grid to earth on the first stage, a 500pF coupling cap off the first stage's anode, 500pF bright cap on the volume control and a 150pF treble cap in the tone stack. "Birds scream at the top of their lungs in a horrified hellish rage every morning at daybreak to warn us all of the truth, but sadly we don't speak bird. The US Vox V1262 Beatle Power Stak amplifier featured two 4x12 speaker enclosures coupled to a V1143 Beatle head. when vox released thier 'heritage series' of amps with ef86 and top boost channels, i wanted to build one. Below is a graph comparing the response curve of the stock Carvin amp to the response curve of a Vox and Fender amp with typical values and the response curve of the modified V16 stack. New nos '70s stack of dimes inductor vintage tone. To put a stack together, you need at least two boxes: the Head and a Cabinet. Here's an in-depth analysis of it. The diagram and the article describe the so-called FMV tone stack; the design used by Fender, Marshall, and Vox, and the hundreds who followed in their footsteps. Re: Traynor YGM Tone Stack « Reply #10 on: November 19, 2015, 01:49:14 AM » That video was made with the volume at about 5 with an attenuator on very low (or high). I do know it's cathode biased, so the tubes are just a swap out deal, no adjustment needed. The US Vox V1262 Beatle Power Stak amplifier featured two 4x12 speaker enclosures coupled to a V1143 Beatle head. The two tone stacks and the VOICING pre-EQ filters are passive, not active, so they naturally shape your guitar signal without excessive phase shift or impulse ringing. The diagram and the article describe the so-called FMV tone stack; the design used by Fender, Marshall, and Vox, and the hundreds who followed in their footsteps. In other words, the ’59 LTD can be painfully bright when turning it up. Vox Valvetone Mods. May 8, 2016 by Abbey Road Institute Amsterdam This week, we will talk about one of the most iconic and well-known guitar amps, the vintage Vox AC30. 3: 07/09/2006. Original Fender reverb sound by. This circuit has no middle control. As far as I can tell, the Vox Tone Control is a variation of the FMV tone stack used by Fender, Marshall, Mesa Boogie and countless others. Tube Amp Tone Control Stacks and Settings With all the modeling going on these days I thought it might be of value to show the transfer curves of the tone stacks in Fender, Marshall and Vox AC30TB tube amps. It's a mod that was made to Dino Cazares in the 90s for his Marshall JCM800. ) You won't lose anything as the middle position of the switch is the stock configuration and voicing of the. Presented below are the schematic and 2 layout diagrams. The head is constructed similarly to the original Night Train with a bright chrome cage over a black base, making it a slightly larger lunchbox, but. The hot switch lifts most of the tone stack out of the circuit so that the signal is not loaded down and thus overdrives the phase inverter. See more ideas about Tube, Guitar and Guitar amp. This still wasn't getting me what I wanted so I started searching around for info on the Thomas Vox tone stack. This gives it 3 voicings – “Stock”, “Tweed” and “Over the Top Boost”. Once I add all the components into 3. The James (or passive Baxandall) Treble/Bass tone stack allows more control with less quirks than the Fender/Marshall/Vox TMB tone. Its strength lies in the sweetness and early breakup caused by the smaller transformers than the Super Reverb, Vibroverb and Pro Reverb. This still wasn't getting me what I wanted so I started searching around for info on the Thomas Vox tone stack. Mods For Rockers. The Vox silencer represents cutting edge material science with an industry exclusive silencer material: C300 Nickel-Cobalt superalloy maraging steel. 3 - Vox went with a 56pf treble cap in the tone stack (C16). You can still get some hair, and it sounds better than that splatty LED tone. View Forum Posts. Yeah, the pot just takes the place of a preset resistor in the amp;however if the amp has a baxandall eq, you get more tonal versatility than a fender,vox, or marshall tone stack is capable of The early feander's had baxandall eqs in some of them, and as a result could get a true mid boost. The slightly anemic character of the Flat mode became the lean, compressed attack of a JCM800 but with a more powerful push that was HiWatt-y in its authority. Others may offer different opinions, but usually it is a good idea to test this with a plan to reverse the mod if you don't like it. Lots of delay in the FX loop, and pedal gain into the front of the amp (fuzz, overdrive, and a Marshall style distortion). My Crybaby was the only one he modified. Find your voice with VOX. Head 'em off at the high pass. I improvised something that works well. Post by sidvicious » Thu Jan 24, 2013 3:40 am i run two amps quite often. The Fender has been re-issuing the 5F8A 4X 10 Tweed Bassman for quite some time now and it's one of Fender better amps but it does not sound that much like a original Bassman. Yeah, the pot just takes the place of a preset resistor in the amp;however if the amp has a baxandall eq, you get more tonal versatility than a fender,vox, or marshall tone stack is capable of The early feander's had baxandall eqs in some of them, and as a result could get a true mid boost. Amp Books® Vf Vpp +12. Schematic Heaven, Tube, Amplifier Schematics Vox Amps - Updated 03-01-006 Chasing Tone Tone Stack Calculator Download Here Wattkins Amp Building Forum. MASTER level control so you can crank the GAIN's up and overdrive the preamp without overdriving the output tubes. Starstream Bass 1H. I read alot about different mods for it. 5" Speaker & 1 x 1" Tweeter. This little gem has quickly established a cult following, since it offers genuine class A tube amp vibe for a ridiculously low price ($140 for the combo, $100 for the newer head model). What basically happens here is that swapping the. Based on several years of vintage Ampeg B15 designs, the Trip Top combines the original circuits of both the Ampeg B-15NC (1964) as well as the later B-15NF (1965-67). The Treble cap is replaced with a high quality Silver Mica cap. The Smokey Amp will also drive any 4, 8 or 16ohm speaker cabinet, including 4x12s, and can even be used on the input of another amp as a fuzz box or booster. Replaced all of the tubes with 12AX7’s. The tone stack has a very wide range and we have found it works great with all types of pickups including active. Vintage ef86s I remember telling everyone how amazing they sound. The J-MOD 100 amplifier is a single channel amp featuring a switchable gain stage and effects loop. Starstream Type 1 Plus. Mod Garage: The Fender Greasebucket Tone Circuit Many pro players swear by this tone circuit, and it indeed produces a different effect than the standard tone circuit we all know. Original Fender reverb sound by. New nos '70s stack of dimes inductor vintage tone. I had been recommended bypassing the entire circuit with a 0. 6/12/2012 12:44 PM. Me persoanlly,I jsut want tone. Today, 10:23 PM. VOX MKIV Tonebender Description of the MKIV origin from the captain. when vox released thier 'heritage series' of amps with ef86 and top boost channels, i wanted to build one. I have an AC15C1 where I have done the bright cap mods, and tone stack changes, retubed with JJ's and installed a UK Celestion Blue. Tone Bank A No. The slightly anemic character of the Flat mode became the lean, compressed attack of a JCM800 but with a more powerful push that was HiWatt-y in its authority. The mod kit for the Blues Jr. Lastly, the AC30 has a tube rectifier while the AC15 doesn’t, this is both a positive and a negative for the AC15 as having a tube rectifier delivers better tone but also means. I keep the reverb on my Fender Deluxe Reverb amps set at about 2 or 2 1/2 all of time. These may have been borrowed/hired, such as for television performances. IF you look at the Duncan Tone Stack Calculator and use the "Vox" program to approximate the values closer to this tone stack, you will see that a. 5 Vol Bright: 8. Vox AC30/6 amplifiers from around 1963 had already implemented the top boost, and therefore had 3 tone controls. For sale is my Vox V847 wah with a true bypass mod. It works particularly well with simple low wattage amps, with or without a Tone control or full Tone Stack (Fender Champ, etc. It's built from a Champion 600 PCB (a AA746/BF Champ circuit w/ fixed tone stack) , but I added the Bass and Treble controls as from the BF/SF Champ, I added a NFB switch, built it with the bigger transformers for use with the 6L6GC (ANOS Sylvania I had lying around) and I built a 1 X 12" combo cab and matching 1 X 12" extension cab. With 30 watts, it's loud enough to use on my gigs. I'm telling you it's a totally different amp. Please login or register. Tube Amp Tone Control Stacks and Settings With all the modeling going on these days I thought it might be of value to show the transfer curves of the tone stacks in Fender, Marshall and Vox AC30TB tube amps. The amp models also differ in the location of the controllable tone stacks in the signal chain: some models apply the tone stack filtering before the overdrive stages (Princeton, 60s Thrift), others after overdrive (57 Deluxe, Super Sonic), and some between multiple overdrive stages (Vox=British 60s, Deluxe Reverb). This is a guess because I don't know what the signal level is at point A, and this is important to check. Find your voice with VOX. The nasal attack of the Blues Driver's tone stack was now a brash, Vox-y clarion call. The non-HRM amps don’t have this tone stack and as a result the overdrive is bit more open and full sounding. VXT-1 Strobe Pedal Tuner. What basically happens here is that swapping the. I read alot about different mods for it. The tone stack mod is also supposed to really open it up and keep it from sounding boxy. The Vox Valvetone V810 is a great sounding pedal with true bypass, discontinued in about 2000. Vox Amps - Updated 03-01-006 Ampeg Amps - Updated 03-03-06: Mesa Boogie Amps - Updated 03-03-06 Dumble Amps - Updated 01-01-00 Bargain Bin Amps - Updated 03-02-06 Post 70's Amps - Updated 03-03-06 PA/Hi-Fi Amp Conversions - * NEW *. Another tone control we almost all come in contact with is the amplifier tone stack, as sketched out in Figure 3. With 30 watts, it's loud enough to use on my gigs. Includes Power Cord. Splitting sections of the tone stack either side of a stage prevents interaction between them. When designing the DDS-2250V, I had the choice of the traditional Fender/Vox/Marshall tone stack using Bass/Mid/Treble controls, or using a passive version of the Baxandall Bass/Treble tone stack which is popular on hi-fi equipment. The DRIVE switch now offers a hard drive option in addition to the soft drive. Idk just some ideas. For one, the Tone Stack is amazing. Vox V847 Wah-Wah Analysis. As for the Tone stack mod, from what I could gather your mod is basically jumping R32 and the effect it has is scooping the mids. Each will take a slightly higher degree of Brightness away and will warm up the amp some, remove any harshness, and smooth out the overall distortion. "SKY" and "SSS" are the same tones as "Modern/Classic" from the original clean pedal. back to TubeAmps2. The J-MOD 100 amplifier is a single channel amp featuring a switchable gain stage and effects loop. An Evolution in Tone. Provide a good product at a fair price, treat the customer well and with honesty. A couple weeks ago I got a Vox ac15c1. DIY Layout Creator (DIYLC in short) is freeware drawing tool developed with help of a large online community of DIY electronics enthusiasts. Presented below are the schematic and 2 layout diagrams. Do get a matched set for the smoothest most balanced tone. In other words, the ’59 LTD can be painfully bright when turning it up. By contrast, the silverfaces are not strict reissues, offering tweaks not seen in the originals. "SKY" and "SSS" are the same tones as "Modern/Classic" from the original clean pedal. As for the Tone stack mod, from what I could gather your mod is basically jumping R32 and the effect it has is scooping the mids. INCREASING GAIN THROUGH ADDING NEW GAIN STAGES: This being the 1990's, I think by now most guitarists know that adding a gain stage to an amp increases its ability to generate. Fooltone Sole Blender: A remake of a modified version of a germanium Vox Tone Bender by a foolish company. Thirdly, the color PDFs from MOD Kits’ site are easier to follow than the black and white print outs provided, and a schematic of the circuit (not included in my kit), can be freely downloaded from MOD kits’ site. The power tubes can make a decent change in the tone also, but I don't have any experience with the NT15H power side. The power amp uses 12AX7 Tubes , which are the same as ECC83’s. 5 Powdog 2 years ago. The Valvetronix series is the perfect example of VOX’s unique, cutting edge vacuum tube modeling know-how; delivering a broad range of powerful sounds. A handle on the top makes it easily portable, while legs on the bottom help protect the exterior from scratches. At this point, I would NOT encourage anyone to download or use 2. The Treble Cut control may not necessarily be in the preamplifier stages. The components. VOX™ Silencer options: Vox S™ w/ 5/8-24 Direct Thread Adapter– (SKU: EA04) Vox K™ w/ 5/8-24 Direct Thread Adapter– (SKU: EA06). The new caps have corrected values to open up the tone and get rid of that boxy sound. 5-3 Fat n thick clean: Input: Bright 1 Jumper: Normal 1 to Bright 2 Tone: 9 Vol Bright: 3. Vox AC15 or Vox AC4C1-BL I have some money to spend at Sweetwater and was looking for a smaller/portable amp but loaded with tone to take around with me. I made it so it can go from a somewhat clean transparent slight boost, to a heavy fuzz with a lot of boost, and can be scooped, flat, dark, bright. People began to refer to these amplifiers as AC30TBs. Vox put a similar control across the output tubes. I will certainly want to upgrade the speaker too. My vox ac30 is 75lbs. If you’ve ever plugged into an AD30 or Rocker 32 Combo, you know we are capable of so much more. Choose the circuit and move the tone controls to see the frequency response graph change. I mostly use single coils on it and run the mids higher and the treble a little lower on these amps for fat classic rock tones that work well for rhythm and leads. Mod 2 - AC30 tonestack mod: (Original vintage tonestack setup for AC15/30) This one is a little tricky, since there are no spaces on the board to solder a jumper wire off the bass tone pot. Here is a cool little tool that I like to use to "test drive" tone settings (Yeah, I'm an engineer. The cleans are warm and juicy with just the right amount of smooth fenderish sparkle on top. View Forum Posts. here's what i do on all setups. AUTH – replicates authentic saturation circuit behavior and lowers the volume out of the virtual preamp. The Brown Pro and Bandmaster had a two knob treble/bass tone stack which is somewhat different than the 2-knob variation of the Fender blackface tone stack. Great highs and slightly reduced bass. It wort hes its price. Install a 3. This mod adds a toggle or footswitch to bypass the tone knob circuit for a nice mid boost! If you would like your pedal modded or upgraded contact: Email: [email protected] The B-15-NF channel has the volume control section before the tone stack and in the B-15-NC channel it is after. When SPICE modelling the effects of the stack, it became apparent. These les paul gibson are really awesome. There's still plenty of adjustment in the tone controls. People who say that a new speaker has cured the Blues Junior’s inherent boxy tone simply haven’t heard a Blues Junior with proper tone stack and power supply mods. Tone stack types: Fender modern, Vox, Marshall, James (passive predecessor to Baxandall), Fender E series, Steve Bench, Hiwatt tone stack, and now the Big Muff tone stack used in FX units. AFAIK, the 3dB cutoff point of the Vox Tone Cut circuit is right where the high end of the Retro 30 and some other classic 12" Brit speaker comes back up at ~3. This way the overall resistance between the tone stack and and ground remains close enough. The modification is achieved by replacing capacitor and resistor values in the original tone stack. com Facebook. – Anonymous Feb 13 '11. The two channel, TC15 is a 15 watt amp with two very different VOX derived channels. Tone stack tweak C16 = C23 (stock 56pf) -> 47pf Removal of Top Boost Cathode Bypass cap This is the U2 mod - the Edge's amp doesn't have this cap and it makes for tighter bass, more headroom/lower gain on the TB channel. so i decided i had to mess with the tone stack on my champion 600. This is a nice little amp for the bits of electric stuff I do on a G&L ASAT. Don't settle for a stock amp, when you can let out the Vox mojo with a few key mods from Fromel Electronics!. For sale is my Vox V847 wah with a true bypass mod. The slightly anemic character of the Flat mode became the lean, compressed attack of a JCM800 but with a more powerful push that was HiWatt-y in its authority. Few modern pedals are made with this inductor, and original stack of dimes are hard to find, but modern versions do exist. It incorporates many ideas that came from people using older versions of the application. It sounds beautiful, looks nice, and only weighs 40 lbs. Unlike the Fender tone stack you can achieve a mid hump by setting the treble and bass controls low. People began to refer to these amplifiers as AC30TBs. Each will take a slightly higher degree of Brightness away and will warm up the amp some, remove any harshness, and smooth out the overall distortion. For GA-5, B+ needs to be under 300V. Mod Garage: The Fender Greasebucket Tone Circuit Many pro players swear by this tone circuit, and it indeed produces a different effect than the standard tone circuit we all know. It works particularly well with simple low wattage amps, with or without a Tone control or full Tone Stack (Fender Champ, etc. The link below will download a Tone Stack Calulator. I took my AC15CC1 to my audiophile friend for the often-discussed cap mod. Decay adjusts the length of the reverb tail, while Tone balances between treble and bass. It's built from a Champion 600 PCB (a AA746/BF Champ circuit w/ fixed tone stack) , but I added the Bass and Treble controls as from the BF/SF Champ, I added a NFB switch, built it with the bigger transformers for use with the 6L6GC (ANOS Sylvania I had lying around) and I built a 1 X 12" combo cab and matching 1 X 12" extension cab. This breakpoint is before the tone stack, so you can EQ the sound after the effects. Merely changing the Body control has altered the entire character of the Tone control response. IF you look at the Duncan Tone Stack Calculator and use the "Vox" program to approximate the values closer to this tone stack, you will see that a. C9 = C18 (kinda nice to put on a switch) Coupling caps - change them out to Mallorys/Sozos for corksniffery good times. Solid State Rectifier: with the exception of the Twin Reverb and a few Brownface designs vintage Fender amps used tube rectifiers which gave them a softer bottom end and singing quality to the sustain. Placing the treble control after a stage would prevent it interacting with the bass and mid controls. Z Amps, the Mod RA process was worth the total completion interval. I agree with your points you made. Early Fender Bassmans, the Marshall JTM and several Vox amps were all equipped with a variation on the cathode follower theme. "Rivera also used a 0. 5 Vol Normal: 12 Fat Strat/Tele clean less saturation:. Read the "Help" info. Q-5: There are so many speaker options. Contact Me. Best thing to do is learn what you like and how to get it then you'll not have any issues with tone. 3uF cap in parallel with C52 through a DPDT switch. For one, the Tone Stack is amazing. I'm telling you it's a totally different amp. There is a bright cap mod that is similar to the LNT's Bright Cap/C19 mod. Two CTS 500K audio taper pots stacked in one hole on the guitar. Arteffect Audio makes both halo and stack of dime inductors. "SKY" and "SSS" are the same tones as "Modern/Classic" from the original clean pedal. The Thunderdrive Deluxe LTD. boost switch Bridged-T Cathodyne Phase Inverter Crate EL34 Tube EL84 Tube Fender Gibson High Gain JCM800 Line 6 low watt Marshall Mods Park Plexi Push-Pull Output Reverb Rockhead single ended SRPP Supro switch Theremin Tone Stack Trainwreck Transistor to Tube Conversion Tube Reverb Vox. When the tonestack is bypassed, the signal goes through C28 which in conjunction with the volume pot (we're ignoring the slight impact of R35 because we're jumpering it - read on for that) creates a highpass. Presented below are the schematic and 2 layout diagrams. They both sounded better than the new Vox V847. 1 makes the sound a little fuller. Big, and full. The power amp uses 12AX7 Tubes , which are the same as ECC83’s. 2K 5W 820 5W Reduce the B+ voltage looking for 300-310 volts at EL 84 plate pin 7. There is always a fairly large signal drop in a passive tone stack - anywhere from 6 dB to 30 dB of loss occurs. Z Amps, the Mod RA process was worth the total completion interval. Vox V847 Wah-Wah Analysis. I agree with your points you made. VOX AC30S1 30 Watt 1x12 Guitar Combo Amplifier AC30S1. Replacing the tone stack caps and phase inverter caps with higher quality makes for a difference. I see this happen a lot: People buy a loud amp and try to record at home. This model features a vintage appearance and sound, boasting ten watts and a series of knobs to refine the tone further. AC50 Amp schematic (Vox Sound Ltd, 1976) AC50 Amp schematic (Joe Piazza) AC100. My take on Carr amps is that they are extremely well built and will compete or beat any vintage or other boutique amp I have tried. Not built to emulate - the VOX AC30S1 is a true representation and evolution of VOX design at its finest. Replaced all of the tubes with 12AX7’s. In other words, the ’59 LTD can be painfully bright when turning it up. akavalve: Fender Champion 600 cathode bypass mod b. Great for playing funk with a Compressor pedal but it can do a lot more!. Nothing special about the Marshall, as it was purchased for Gaby to practice her guitar when we were in Singapore, it is just a cheapo 15W transistor combo with the FDD distortion, gonna sell it soon I think. The bump happens at 800Hz, which for me is the best point to get a nice tone that is capable of cutting through the mix in a band context. Vintage Guitar Fuzz Pedal* Vox ToneBender* Excellent Working Condition! Up for auction is a nice mid 60's VOX Tone-Bender fuzz tone pedal. Also most amps Blues Jr included operate in a preset range meaning that 0 is not truly 0 or off. The ‘HRM Tone-stack Bypass Modification’ will not be needed on the Straight OTS non HRM models as there is no 2nd Marshall style tone-stack (post OD tone-stack), just the normal preamp. Each basic model can be ordered with a 50W or 100W power amp. There are no controls on the amp, just one input, and one output, meaning that everything is controlled by the guitar volume and tone knobs. The three knob tone stack has been around since the beginning of bass amplifiers. Please send my appreciation to Dr. CTS pots feature heavy duty construction and are specifically designed for top performance in guitar volume and tone circuits. Common values are 220pF, 330pF and 470 pF. (Most of what I play is acoustic, for which I use a Crate Gunnerson). Schematics show the use of 270pf treble capacitor in the tone stack rather than the 250pf usually seen, giving slightly more upper mids. Several types of tone stack configurations are included (Fender, Marshall, Vox, etc. The Official Blackstar Amplification site, featuring Guitar Amplifiers, Guitar Amps, Effects Pedals, Merchandise, Dealers, Videos, Artist News. with Johnny about some mods to the tone stack. The cleans are warm and juicy with just the right amount of smooth fenderish sparkle on top. Baxandall or James TB Tone Stack. ) You won't lose anything as the middle position of the switch is the stock configuration and voicing of the. The Vox AC15C1 Custom guitar combo amp offers maximum tonal dexterity to countless guitar players around the world. The wah has some cosmetic scratches. Trinity Tweed Kit. Vox Night Train Mods. Remove C5 C6 C28 and C4 Change C6 to a 22nF 50-100volt poly capacitor. Don't settle for a stock amp, when you can let out the Vox mojo with a few key mods from Fromel Electronics! WARNING: Performing these modifications WILL void the warranty on your amplifier. The Bassman-style tone stack serves two purposes: to compensate for the treble and bass attenuation that inevitably occurs at each stage of amplification and to allow the guitar player to adjust the frequency response using bass control R B, middle-range control R M, and treble control R T. Vox AC30/6 amplifiers from around 1963 had already implemented the top boost, and therefore had three tone controls. So maybe there’s something new here. Tone control to treble side with the Body control still at minimum. Modkitsdiy Guitar Amp Mod Kit Tone Stack. There also was not a great deal of range in the. Also keep in mind that as you change each tone control can effect more than just tone. If it looks like a Fender and sounds like a Vox that may make some people do a double take but it's all about tone in the end. Simply click on the appropriate tab to bring up a different schematic. 5K R10 220 2W 1K 5W 1. An Evolution in Tone. Vox Amps - Updated 03-01-006 Mods - Updated 1-26-04 Maintenance - Updated 01-19-02 Tone Stack Calculator Download Here. Vintage NOS Mullard "mustard" caps are introduced as part of the mod and the 125uF/16v caps are doubled on the bass channel's cathode … this way, the amp stays vintage sounding as much as possible … the tone stack is pure JTM45, with one 0. The AD30VT was discontinued by then, but I found the VT-30 for a very attractive price. Here's a link (there are others if you search under "AC15 bright cap mod:" Vox AC15 Mod Guide | END OF THE GAME The two modifications above made the amp really nice. The two tone stacks and the VOICING pre-EQ filters are passive, not active, so they naturally shape your guitar signal without excessive phase shift or impulse ringing. Slightly cutting the lows and while the tone control works pretty well, there isn’t that much good to be said. The hot switch lifts most of the tone stack out of the circuit so that the signal is not loaded down and thus overdrives the phase inverter. They just lack cooling. There's still plenty of adjustment in the tone controls. R7 1M 100k Remove 220K R8 2. Vox Amps - Updated 03-01-006 Ampeg Amps - Updated 03-03-06: Mesa Boogie Amps - Updated 03-03-06 Dumble Amps - Updated 01-01-00 Bargain Bin Amps - Updated 03-02-06 Post 70's Amps - Updated 03-03-06 PA/Hi-Fi Amp Conversions - * NEW *. Within that album is the hit song "Fat Bottomed Girls". The sounds I like best typically come from a JCM800 (Les Savy Fav) or VOX AC30 (Radiohead, Spoon). I like the fact that you can connect 8 and 16 ohm speaker cabs to it, the VOX does that also but at 30 watts. This breakpoint is before the tone stack, so you can EQ the sound after the effects. The nasal attack of the Blues Driver's tone stack was now a brash, Vox-y clarion call. 00 H H Input 0 1 2 3 4 5 6 7 8 9 10 Gain 0 1 2 3 4 5 6 7 8 9 10. Simply click on the appropriate tab to bring up a different schematic. signed in collaboration with legendary American boutique amp designer Tony Bruno who has taken the VOX sound ‘across the pond’ to create an all new addition to the VOX line up. Tone Control Discussions Fully documented discussions of a variety of Tone controls in various situations. Start at 3:15 if you want to skip all the set up and get right to the demo. The Saturator is an overdrive pedal kit that can cover a wide range of gain effects, transitioning smoothly from a massive clean boost to a warm and saturated distortion with the turn of a knob. People began to refer to these amplifiers as AC30TBs. Who cares what other people say. Later on, Vox also offered additional versions of the AC30 unit. The capacitor value is wide open for experimentation. I improvised something that works well. lead vox: Kelley Dickinson and works in isolation. It's also easier to tailor to high gain dirty amps and clean tone amps by varying the TBM tone stacks. So, there have been tone stack mods done & filter cap values increased to where the dimed amps can withstand +35 dB gain from the May Treble booster. For sale is my Vox V847 wah with a true bypass mod. I got to crank it up just now, and it sounds great. When the gain stage is kicked in, the amp gets rich in harmonics and delivers a bit more bite. Remember a passive tone stack CANNOT add to the signal, can only "take away" parts of the signal (when bass is at max, treble is being cut - when treble at max, bass is being cut). When the potmeter is set at 0 you'll have an original tone, and when turned up the mids increases and your amp growls with a British Vox'ish tone (especially together with a Celestion speaker). If it looks like a Fender and sounds like a Vox that may make some people do a double take but it's all about tone in the end. Do get a matched set for the smoothest most balanced tone. Vox owners club! Discussion in 'Amp-a-ridifiers' started by horax , Dec 9, 2016. The Treble cap is replaced with a high quality Silver Mica cap. R7 1M 100k Remove 220K R8 2. The Fender tone stack circuit subtracts primarily mid and low frequencies, because players wanted more clarity out of their amps. Here's how it looks: The tone stack. I have a Mercury Magnetics choke on order, not sure if changing the OT will make. Try with a Tonebender or Treble Booster Drive block. Unleash the tone of your Blues JR with these modifications from Fromel Electronics! From the factory, this pint size wonder has a lot of potential, but with some select Fromel tweaks this amp can stand toe-to-toe with some of the finest boutique amps on the market. On all TMB tone stacks one side of the mid pot is connected to ground, and this is the ground point for the entire tone stack. The sound difference is night and day. II sounds wonderful, versatility enhanced. The DRIVE switch now offers a hard drive option in addition to the soft drive. Each power mode has it’s own tone-spawning operating class and wiring configuration! Choose the full power mode of either amp (25W in 5:25+ or 50W in 5:50+ ) for Class AB running in a Push-Pull configuration for punch, authority and headroom. The Thunderdrive Deluxe LTD. Don't settle for a stock amp, when you can let out the Vox mojo with a few key mods from Fromel Electronics! WARNING: Performing these modifications WILL void the warranty on your amplifier. 047 cap for the 0. Marshall’s generally do not feature great lush sounding MOD spring reverb. Contact Me. Typically, the 'Treble Cut' control is a 500K/1Meg potentiometer, with a. The Mercury Magnetics Epiphone Valve Junior Mod. Passive Bass Pots. The "Fender" circuit is for three knob EQs like the Twin Reverb, the "Vox" circuit is the same for two knob Fender EQs like the Deluxe Reverb and Princeton Reverb. 3 N° 12 of the ToneQuest Report, issue of October 2002 (in english). The extra distortion control allows you to slightly adjust the corner frequency resulting in a softness control. Others may offer different opinions, but usually it is a good idea to test this with a plan to reverse the mod if you don't like it. What basically happens here is that swapping the. And lastly swapping the. This kit addresses a number of issues with this amp by improving the reverb, reducing noise and hum and revoicing the tone stack. There is always a fairly large signal drop in a passive tone stack - anywhere from 6 dB to 30 dB of loss occurs. With 30 watts, it’s loud enough to use on my gigs. I see this happen a lot: People buy a loud amp and try to record at home. The wah has some cosmetic scratches. 2K 5W 820 5W Reduce the B+ voltage looking for 300-310 volts at EL 84 plate pin 7. Please send my appreciation to Dr. So to do this mod, you would remove the wire from the mid pot's ground connection and connect it to a switch, then connect the other side of the switch back to the ground point. I took my AC15CC1 to my audiophile friend for the often-discussed cap mod. The amp’s tone stack features a beautiful, spread out tone that is at once huge and clear. Then I used a trainwreck master volumeand made the output tubes triode to lower the power. The guy has a couple 5F6A Bassmans and he spends a good deal of time talking about the tone stack and how it is different than the tone stack in the schematic. The VOX tradition of innovation carries on today with products designed to achieve unprecedented tonal flexibility. pdf), Text File (. Choose the circuit and move the tone controls to see the frequency response graph change. Remove C5 C6 C28 and C4 Change C6 to a 22nF 50-100volt poly capacitor. I bought this amp for a band playing blues/punk/psychedelic originals. It wort hes its price. So I looked into building a tone stack to give me some more control, and I found one that seems simple enough that I could build it!. "SKY" and "SSS" are the same tones as "Modern/Classic" from the original clean pedal. This is a fully functional 15 Watt all-tube head so diverse that you can play blues one night, country after that and full on ROCK the next! The Night Train features a Gain control, a preamp mode switch, a fully functional tone stack (Treble,. Could also insert a Vox TB stack for Baby Vox here. Well, this book answered all of my questions and opened up some exciting possibilities for getting mo'better tone out of this amp: brownface or tweed tone stack mods, marshall preamp mod, dual reverb, different caps and values for different channels, channel bridging, which types of tubes to consider for more warmth. 015 you can bring up the low mids to get a fuller sound. Each one has. The Bassman-style tone stack serves two purposes: to compensate for the treble and bass attenuation that inevitably occurs at each stage of amplification and to allow the guitar player to adjust the frequency response using bass control R B, middle-range control R M, and treble control R T. I like that the new Custom series comes pre- modified with a British speaker & a Bassman tone stack in the "Custom channel". Mod Garage: The Fender Greasebucket Tone Circuit Many pro players swear by this tone circuit, and it indeed produces a different effect than the standard tone circuit we all know. The tone stack is modified at R17 (470k put over it) 82k, C5 replaced by 150p, C7 (22n put over it) 44n, as usual. What Vox is doing here with the "Bright/Thick" switch is going between the tone stack (which is indeed bright!) and a tonestack bypass. When the gain stage is kicked in, the amp gets rich in harmonics and delivers a bit more bite. You will be presented with a list of items after entering 3 digits, select one of them. Trinity Tweed Kit. Classic Plexi - Bassman style 3-BAND TONE STACK with mid-scoop for extended flexibility in shaping your tone. These les paul gibson are really awesome. , which only costs $22 is the cheapest and best upgrade I've ever done to any piece of gear I've ever had. Product Description. 8 KOhm resistor with a 4 KOhm, and use the 10 K pot to go beyond the original 6. akavalve: Fender Champion 600 cathode bypass mod b. New Tone Stack Options: "Mid Shift" and "Deep" 2. 7 attendees x 2-3 amps each = a good stack of cool gear. The components. so far really liking the results. Each basic model can be ordered with a 50W or 100W power amp. I took my AC15CC1 to my audiophile friend for the often-discussed cap mod. Tip #1 - For MAZ 38 and MAZ 18 Reverb amps ONLY. The Tone Lounge 103,015 views. The Smokey Amp will also drive any 4, 8 or 16ohm speaker cabinet, including 4x12s, and can even be used on the input of another amp as a fuzz box or booster. Tone Stack - Makes a couple key changes that reduce the harshness of the top end and allows the amp to work better with effects pedals. You guys know how it is once you start tinkering with something, there will always be something you will want to do. Starstream Type 1 Plus. If You Can't Find It, Build It DIY Amp - Part One. I did some mods to my Vox, but I think I have the AC15cc1. Vox AC30/6 amplifiers from around 1963 had already implemented the top boost, and therefore had three tone controls. The amp models also differ in the location of the controllable tone stacks in the signal chain: some models apply the tone stack filtering before the overdrive stages (Princeton, 60s Thrift), others after overdrive (57 Deluxe, Super Sonic), and some between multiple overdrive stages (Vox=British 60s, Deluxe Reverb). Also found in the master section is the traditional Vox tone cut control that was missing from the original Night Train, which can alleviate similar issues with high settings of the treble knob. An Evolution in Tone. mods include our Ibanez TS-9 Mod Plus, the Vox Mello Wah, and the Boss DD-3, which gives you three delay tones: digital (stock w/ improvements), moderate analog, and all-out analog, all while still remaining in the digital realm. This model features a vintage appearance and sound, boasting ten watts and a series of knobs to refine the tone further. Original Fender reverb sound by. Forum Statistics: Unique Favorite Tools of ours. Each basic model can be ordered with a 50W or 100W power amp. Vintage Guitar Fuzz Pedal* Vox ToneBender* Excellent Working Condition! Up for auction is a nice mid 60's VOX Tone-Bender fuzz tone pedal. Tube set is a Chinese 12AX7B Preamp and a Sovtek EL84 Output. that a new speaker has cured the Blues Junior's inherent boxy tone simply haven't heard a Blues Junior with proper tone stack and power supply mods. so far really liking the results. The above picture is a graph for a modified version of the tone control from early Vox amplifiers. Here's a sketch of the Blackface modded tone stack with mods in red On the main board, solder a 1uF cap across (in parallel with) R97. For players who need power, and lots of it or who need power now and MORE POWER in the future a stack is the way to go. Here's some: a couple of treble-eaters taken away, 3-way switchable Crunch TS, switchable 2/3-gainstage Crunch Green, Crunch Red/Orange and OD circuit very modded, R192 CF resistor 47k changed to classic Marshall 100k, OD1 and OD2 tone stack inputs separated using 5V relay, 4-8-16 Ohm NFB tap switch, 27-47-100k NFB resistor switch, 47nF-100nF-168nF Presence cap switch. not quite in the realm of Vox This digital Dumble clone is customizable along much of the same parameters Mojotone Quick Order Form!. Tone Stack Bypass or "Raw Switch" This is a great mod for pretty much any amp with a TMB (treble mid bass) tone stack. This still wasn't getting me what I wanted so I started searching around for info on the Thomas Vox tone stack. Vox Valvetone Mods. It provides a much bigger spectrum of tones. Carr Mercury V 1x12 Combo Amp in Black tolex This is my third Carr amp. Mod ® Kits are designed to give both novice and experienced musicians the opportunity to build their own amps and effects pedals. Biasing the EL84 explained: Valve Junior - Mods, Scratch Building, Biasing Also check out sewatt Single-Ended Forums. Big, and full. The amp is physically small as well as low power and is ideal for both practice and recording. Here's a link (there are others if you search under "AC15 bright cap mod:" Vox AC15 Mod Guide | END OF THE GAME The two modifications above made the amp really nice. There are also some DIY mods that may be considered - 1) an effect loop kit, and 2) a DIY VF55 foot-switch. It's very easy to dial in - almost like the 5E3 equivalent for Vox amps because it only has a Cut tone control instead of Bass/Mid/Treble. Vox produced several versions of the Wah-Wah with small circuit adjustments:. It’s what I believe in, and hopefully I succeed in following it. Once I add all the components into 3. The basics are changing the power and output transformers and adding a choke. VOX™ Silencer options: Vox S™ w/ 5/8-24 Direct Thread Adapter– (SKU: EA04) Vox K™ w/ 5/8-24 Direct Thread Adapter– (SKU: EA06). For this graph, the Tone control is still to max treble but the Body control has been rotated to its mid point. Unnervingly, if you see it enough it even begins to make sense.