Vox av15 schematic. Check EL84 bias resistor R38 on schematic.

Vox av15 schematic Vox Heaven. I am looking for any thoughts on this, as I am running out of ideas. Schematic. 17. As I'm learning, there are many versions of the AC15 out there, with many opportunities for confusion. 6 AC30C2(X)/AC30CH FRONT PANEL LAYOUT INPUTS 1. Downloads: 1249. Do you have a Vox guitar or bass tube amp that needs repair or modifications? Here you will find our collection of Vox schematics. You need two power resistors, which only cost a few bucks. Products labeled “Service Manual” contain information associated to service and repair. All of these PDF files are available for free download. ) Apr 4, 2014 · (See original schematic) NOTE 3: Depth Preset and R47 replaced with front panel Depth pot. 13. Page 1 SERVICE MANUAL AC15C1/C2/CH TABLE OF CONTENTS Schematic Diagram:2 Hookup:12 Cable Location:16 PARTS LIST: 17 Sound Test Setting:20 The AC15C2 speakers are corrected from 530000002139 530000002119 Issued: Jan. It was designed by our UK based VOX engineering team and built by our state of the art, vertically integrated manufacturing fac ility and we’re sure it’ll give you countless hours of great guitar tones that will feel as good as they sound! Download the Vox AC15 schematic in PDF format for free. I figure I'll order the cabinet finished with black basket weave, change the grill cloth to Vox style and make the valance a little wider. Welcome To the Hoffman Amplifiers Forum March 15, 2025, 03:20:58 am: Welcome, Guest. The schematic provides a detailed diagram of the circuitry and components used in the AC15, allowing users to visualize the inner workings of the amplifier. (I'm relettering the schematic. Hi, all-- On the old 1960 Vox AC15 schematic, OA/031, there are a few notes in the sidelines that I need help making sense. NOTE 6: Trem ON/OFF switch S4 replaced with SPDT center off switch. In the summer of 2012 Bnwitt started a discussion at Hoffman's Amp forum. Downloads: 1835. (See original Courseimage. It's divided in 5 parts so it is "computer friendly" and for those who want to get it all in one click there's a link to the PDF file at the end of the post. putting the tremelo depth control and speed potentiometer on the front panel, and possibly a rotary switch for the brilliance. 6, ampmike, 97, Sun Sep 13, 2015 5:13 pm Thomas Vox repair boards work in the field14, R. Rectifier: silicon rectifier with passive SAG circuit. Sep 21, 2018 · Floating Ground to Chassis Ground network on Vox AC15 Schematic I've attached the schematic from an AC15HTVH which shows the RC & diodes network that we've been discussing. Checkover and possible corrections are welcome The AC15 schematic is a crucial tool for guitarists and technicians who want to understand, modify, or repair Vox AC15 amplifiers. Hoffman Amplifiers Tube Amp Forum, Vox AC15 layouts. 62 volts. 2, indications are that up to 100 were built in line with OS/005. We have taken the best AC designs and added a number of useful features to give you the most tonally flexible AC to date! Apr 17, 2007 · Here is a schematic so we can have a meaningful discussion. 2 is 2 12AX7s with Vol, Treble, and Bass pots, A common Top Cut control, and vox ac15 psu ac15-62-Ø2 230. It shows the Signal Ground side that we've all seen, and the other end is what I'm used to seeing with a network like this. The design for the Vox AC15/4 circuit was published on JMI schematic OA/031 "AC15 Amplifier Circuit No 3," dated April 4, 1960. , 629, Wed VOX AC15 (JMI) Replica Layout and schematic Schematics for the Vox AC80/100 and Vox AC 100. Main Schematic AC30/6 Normal model. I have a Vox AC15C1 and one of the popular mods is the "bright cap" mod. Adored by the biggest names in music for nearly 60 years, the VOX AC15 Custom carries on the tradition that began in 1958 and offers guitarists the unmistakable sound of VOX, with all the refinements of a modern amplifier. AC15C1 Musical Instrument Amplifier manuals and instructions online. SChematic Vox AC15 C1 Welcome to VOX Many thanks for adding the VOX AC30VR/AC15VR amplifier to your sonic arsenal. It includes assembly sketches and diagrams, a schematic, wiring diagrams, and two comprehensive parts lists detailing over 100 individual components by part number, name, and quantity required. After the collapse of Vox into bankruptcy in 1969, the AC-15 dissappeared from the Vox product line for over twenty five years. Read voltage ; 11. Messy and hard to understand, so I decided to redraw it to something more "user friendly" 60's era AC15 for now, AC30/4 and AC30/6 in time I hope you find it useful. Nov 23, 2019 · Author Topic: Vox AC15 Tweed Deluxe hybrid w/ reverb schematic (Read 13261 times) Hoffman Amplifiers Tube Amp Forum, Vox "AC-15 type" Schematic. 53 Kb. G. Main schematic of the very first Jennings AC30 1959. Jun 8, 2023 · The Vox AC15C1 is their reasonably priced ($800) current production 15W circuit board based version and I finally found a schematic for it here: I'll also Search Everywhere Threads This forum This thread The Vox AC15 is a highly revered amp, capable of delivering amazing sounds at a power level that won't crack wall plaster. If the plate current is zero, the plate-to-cathode voltage is V. Please login or database of Vox schematics and you can control there. I understand all the schematic but I don´t know where is the B+ in JMI Vox Schematics OS132, OS/133, OS/134, OS135/ OS/136 and VSL Schematic OS/184 . AC15HW1X amplifier pdf manual download. Building this with the parts you already have is what everyone is suggesting. We have taken the best AC designs and added a number of useful features to give you the most tonally flexible AC to date! Oct 29, 2007 · Well, the hum is centralized on the b portion (as per schematic) of V3. Oct 29, 2013 · I don't know how about you guys, but for me factory VOX schematics are unreadable. 1996 Vox AC15TB/TBX vs a 1961 JMI AC-15 Amplifier Vox Amplifier model AC30 circuit diagram circa 1960, electronics schematic circuit schematics, Vox ac30 amp schematics. If the exterior becomes dirty, wipe it with a clean, dry cloth. The Bassman/Marshall CF circuit on the other side uses 2 more tubes but not a lot of real estate on the board. Along with the AC30TB and AC30TBX, the AC15TB and AC15TBX were manufactured for Vox by Marshall Amplification. Download Now. Just thought you'd like to know. It has been successfully built by three forum members (as of 06/07/2014). TOP BOOST Channel: Vox AC30 Schematic HOT/COOL Switch: Tone controls are lifted from ground a bit. AC15C1 musical instrument amplifier pdf manual download. Click the link above for Tube amp info, Schematics, Board building information, Projects, Mods, Transformer diagrams, Photo's, Sound clips. & See full list on drtube. . Mains input: preset 100V or 120V or 230V or 240 V ~ 50 or 60 Hz depending on country of sale. I have found that if you ground the grid (pin 7) the hum is increased or at least changed. It is a valuable resource for understanding how the amplifier works and for troubleshooting any issues that may arise. Vox Ac 15 Schematic Read/Download The AC15 Custom also offers footswitchable spring reverb and classic VOX tremolo to enhance the already impressive sound. File Size: 87. The trouble is, the schematic in the catalog was designed to extract the maximum possible voltage gain from the EF86, for use in microphone preamps, tape recorder playback preamps, record player magnetic cartridge preamps, et cetera. I'd have to find that schematic to be sure, but basically the only Vox AC30 with EF86 per my knowledge was the AC30/4. pdf Vox Schematics Vox AC15 1996 Preamp Schematic Diagram. The document aims to provide technicians all necessary information to assemble, repair, and maintain the amplifier. Consider reducing those to 22nF to tighten the bass response for a guitar with humbuckers and/or a hot input signal. Besides the AC100, the other British-made amps encompassed are: the AC4, AC10, AC15, AC30 (two. Welcome To the Hoffman Amplifiers Forum March 11, 2025, 06:58:43 pm: Welcome, A schematic, layout, and hi-rez Nov 28, 2013 · Re: VOX AC15 [JMI] Replica Layout and schematic Post by M Fowler » Sun Mar 02, 2014 3:01 pm I asked BLC amps if I could buy an AC15 chassis/plate and he said yes but not sure if he sells complete kits. Rectifier EZ81 Controls Speed, Vib-Trem (switch), Ch I Volume, Ch II Volume, Brilliance, Top Cut Speakers one or two 15-watt Celestion G12 drivers with alnico magnets Output 18 watts RMS. The AC15 version appeared in a 1x12" TV front Cab with a Goodmans Audiom 60 speaker. Sep 5, 2012 · Hi guys, since Vox staff thinks they're still in the 70's and therefore refuse to send the official schematics I decided to reverse engineer mine. Service Manuals generally provide information and instructions pertaining to product disassembly, schematic diagrams, parts lists, exploded views, troubleshooting guides, wiring diagrams, and much, much more. 18, 2016 Ver. Read or download vox ac15 c1 schematics PDF with 5 pages. REAR PANEL LAYOUT. The AC15C2 speakers are corrected from 530000002139 to 530000002119 VOX AC30 STANDART ISSUE 1990 SCHEMATIC VOX AC30 TOP BOOST 1961 SCH Download VOX AC15C1 SCH service manual & repair info for electronics experts. Images of bands using the amp on stage and in the studio May 10, 2014 · 1960 Vox AC-15. Mar 2, 2009 · The Normal channel goes into one half of the PI, yes. Sep 19, 2016 · The Vox schematic I am referencing to tells the ef86 plate should be at 90V and the phase inverter plate at 220V. 5" chassis. It also describes the sound test settings. Vox AC15HW1 15/7. 15. You can use a 50 W resistor for R1 and a 25 W resistor for R2 if you want a little more safety margin (cooler-running resistors. Vox AC15. pdf) or read online for free. Vox V-12 & V112 Buckingham Amplifiers Vox V1121. 12. Don't abuse the privilege of our free schematic offerings by downloading everything, download only what you need. There are AC10 and AC15 schematics from Thomas Organ that finally seem to cut the crap and show the circuits with clarity: These are about the only Vox schematics out there that don't make me squirm. Oct 23, 2019 · Author Topic: Vox AC15 FX LOOP (Read 2554 times) 0 Members and 1 Guest are viewing this topic. Introduced in 2010, the AC15C1 replaced the AC15CC1 offered by Vox from 2005 to 2009. Do not use liquid cleaners such as benzene or thinner, or cleaning compounds or flammable polishes. ' t5ØØma ' 23øv ac15 jack pcb js3Ø1 js3Ø2 s2-pc r3a3 c3ø1 stËreap x < "2 r "7 red led heas7øa z r tx a : safety critical components 'replace only with same type rating rss eco nu r date DrNomis Old Solderhand Information Posts: 6855 Joined: 16 Jul 2009, 05:56 my favorite amplifier: Self-Built Valve Amp Head :) Completed builds: Dallas Arbiter Fuzz Face,Tone Bender Professional Mk 3,Tone Bender 3-Knob,Baja BK Butler Tube Driver,Baja Real Tube Overdrive,Roger Mayer Octavia,EH Soul Preacher,Tech 21 XXL Distortion,MFOS Weird Sound Generator. I've currently got a VOX AC15VR and a little cash to burn. 9. Or an AC15 or AC. The manual was last revised in January 2016 and is the property of VOX Amplification Ltd. 10-11. Download. Vox Amp Schematics. Schematic Diagrams for JMI Vox AC-15 and Korg Vox AC15TB/TBX Amplifiers (1959-2004) - Includes four 8. A brief history of Vox 1957 - Jennings Musical Industries (JMI) began manufacturing in 1957, under the name "VOX". File Type: pdf Categories: Amplifiers Tags: Vox Share this: Copy URL to clipboard The schematics on this website are not created by The replica Vox cabs are rediculously expensieve ($449) and I don't really care if it is period correct. The b+ voltage is also different, the schematic calls for 315V whereas my voltage is about 388V, although i only have the first two tubes in Aug 19, 2013 · Agreed about the headache. This may be the correct schematic, but it doesn't say AC15TB anywhere on it. We believe this to be one of the most sonically versatile Hand Wired VOX amplifiers to date, and is well on the way to joining its Grandfathers in the VOX hall of fame. Vox AC2. This 15 watt amp used two EL84s in a View and Download Vox AC15HW1X owner's manual online. These classic tones are further enhanced by a customizable, tube equipped analog power section and a unique, sealed speaker enclosure for improved Jul 3, 2019 · The attached schematic shows you how simple this is. 45 Kb. Downloads: 6121 . Ix Celestion G12 alnico "Vox Blue" speaker. Vox AC15C1 User Manual View and Read online. I did notice that Vox is using carbon comp resistors at R25 and R26. After much research I have decided to build an AC15 based on the 1960 schematic (in Stephen Grosvenor's book) complete with EF86 channel and tremelo, with a couple of small modifications, i. Main Schematic AC30/6 Treble model. NOTE 5: Replace R55 with red or yellow 5mm LED for front panel eye candy. AC15C1 FRONT PANEL LAYOUT. 1 is EF86 based, with Vol and Brilliance pots, a Bass Shift switch, and a pentode/triode switch; Ch. Vox Diagrams, Schematics, Service Manuals The board has been drilled and now its time to load the turrets. See a good amp tech (1791. You will require Adobe Acrobat PDF reader to view these schematics. Best,--Rob were designed by Marshall engineer Steve Grindrod. He proposed to build a 1960 Vox AC-15 for his studio. The amp is true to the original 1960 Vox AC-15 schematic, but is based on the more reliable Marshall style layout. Title: D:GuitarModsAC15CC1_Schematic. The VOX AC15VR Valve Reactor guitar amplifier. Main Schematic AC30/4. Page 2: Schematic Diagram SCHEMATIC DIAGRAM: 4 WIRE CONNECTION: 5 COMPONENT LOCATION: 6-8 PARTS LIST: 9-10 Issued: Oct. This Vox Top Boost Schematic has 2424px x 1650px. I want to know what upgrade route I can ought to go. Long & Short Tom Tape Echo Unit, Cliff Richards Reverb. Vox AC15C1 Schematics (Rev 2) - Free download as PDF File (. Welcome To the Hoffman Amplifiers Forum March 10, 2025, 08:05:08 pm A schematic, layout, and hi May 23, 2018 · The input pentode circuitry for the VOX AC15 and other similar guitar amps was lifted straight from the back of a tube catalog. on Vox AC-30 HW), 76 CLASS-A 30W TB (based on Vox AC-30 Top Boost) 5F6-A circuit, Bass and Normal channel, high and low input, 6L6 The history of the Vox AC100, 1963-1970. The Vox AV15 was a single input, single channel amplifier with one 12AX7 tube. The other channel is the vibrato channel. The COOLTRON circuit basically operates by using two very special signal paths. We have taken the best AC designs and added a number of useful features to give you the most tonally flexible AC to date! View and Download Vox AC15C1 owner's manual online. This amp is the culmination of over 50 years of manufacturing expertise and high quality, guitar ampli-fier design. No login, no charge and no limit. 5-Watt Hand-Wired Combo Guitar Amp with 12" Speaker Vox AC30 TBX Purple Limited Edition Made Notice regarding disposal (EU only) When this “crossed-out wheeled bin” symbol is displayed on the product, owner’s manual, battery, or battery May 24, 2020 · Don't worry. e. This amplifier, like the others in the Heritage Collection, will transport you through the golden age of VOX tone, combining the prized EF86 preamp channel of 1958 with the 1963 Top Boost channel all in one amplifier. The document is a service manual for VOX AC15C1/C2/CH amplifiers. Vox Schematics Vox AC15 1996 Poweramp Schematic Diagram. To avoid breakage, do not apply excessive force to the switches or controls. " 1-Dave Hunter First Stage Pentode Preamp May 10, 2014 · 1960 Vox AC-15. 2. Vox AC15 1996 Preamp Schematic Diagram. The schematic for AC15 Amplifier No. Vox AC15 Schematic Diagram. 2 was drawn 4 December 1959 and designated as OS/005. "All told, a rare combination of qualities that together create an amp that is unparalleled in the studio and pure bliss to play cranked up in clubs and on small and medium stages. 16. 4, 2007 8 530000000915 VOX Blonzing badge Black ABS Text bronzing 1 Understanding the different sections of the Vox AC15C1 schematic. Congratulations on your purchase of the VOX Guitar Amplifier Custom Series AC30C2X/AC30C2/ AC15C1. Vox AC10. 5" x 2. The mod is simple, clip/remove 3 caps and run a wire from the top boost volume pot to ground. The Marshall style, single board layout works well in a 20" x 6. 1958 - The Vox AC15 (Amplifier Combination 15 watts) was introduced. 6. It provides technical information for technicians to service VOX tube Jun 24, 2020 · Vox AC15 circa 1960 Preamp tubes one EF86, three 12AX7s (one for PI), one 12AU7 Output tubes two EL84s in class A, cathode-bias. An affordable VOX AC15 that uses a true hybrid of valve and solid-state technology with a tube in the power amp section. So I got brave and reverse engineered my lead player's Voc AC15CC. 2x10 Vox Heavy Duty "Bulldog" speakers. pdf Author: Dave Created Date: 5/6/2008 10:53:44 PM This document provides assembly and parts information for a VOX AC15HTVH guitar amplifier. 7. Vox seemed to follow a sort of British tradition of drawing schematics that obfuscate more than illuminate. Although there was no separate schematic for AC10 Amplifier No. My AC15 VR is really nice and I. Free Schematic Downloads for Thomas Vox Amplifiers, Organs and Effects - Courtesy of the Vox Showroom Please respect that internet bandwidth costs us money. File Size: 205. NORMAL jack Plugging your guitar into this input will route your signal through the NORMAL channel. I believe the goal is to keep the amp from being too bright, especially at higher volumes. The Vox AC15C1 schematic is a detailed diagram that represents the various components and connections of the Vox AC15C1 amplifier. 34 - EF86 channel (with the bright switch) and a paralleled 12AX7 instead of the EF86. R38 on the JMI schematic is 1k5. Free Schematic Diagrams Download Website | More schematics Apr 16, 2014 · NORMAL Channel: Either a Vox AC30 Normal channel with added bright Switch. reading time 15 minutes. Vox V301J and V301E Single Manual Continental Organs; Vox V301H Single Manual "California" Continental Organ (1966) Introduced in 2010, the AC15HW1 and AC15HW1X were the first amps built by Vox since the mid seventies that featured true point-to-point, hand wired construction. Vox Continental Organs and Univox Keyboard. Vox AC100 Poweramp Schematic Vox AC100 Schematic Vox AC10 1 Schematic Operate this unit at a suitable distance from radios and televisions. 04 kB, 3088x1892 - viewed Vox AC-15 amps manufactured by JMI in the 1960s set the standard for what a reissue hand wired AC-15 should be. 14. Pulling V2 does nothing, hum is still present. Also for: Ac30hw2, Ac30hw2x, Ac30hwh, V212hwx, Ac15hw1. Downloads: 1006. Download Vox AC15C1 PDF manual. 5” x 11” first-generation high resolution reprints of the official and original factory schematic diagrams for AC-15 amplifiers produced by JMI from 1959 through 1967 and the AC1 Jan 2, 2014 · DrNomis Old Solderhand Information Posts: 6855 Joined: 16 Jul 2009, 05:56 my favorite amplifier: Self-Built Valve Amp Head :) Completed builds: Dallas Arbiter Fuzz Face,Tone Bender Professional Mk 3,Tone Bender 3-Knob,Baja BK Butler Tube Driver,Baja Real Tube Overdrive,Roger Mayer Octavia,EH Soul Preacher,Tech 21 XXL Distortion,MFOS Weird Sound Generator. I truly hope it annoys Vox deeply. Vox AC30 circuit description. Custom Series. Mar 24, 2008 · I have found it really frustrating that Vox doesn't make available the schematics for the Custom Classic amps. The AV15’s tube-based, multi-circuit analog pre-amp provides a full complement of clean, crunch, overdrive, and high gain tones that can be tailored to your liking via the Bright and Fat switches. These are the endpoints of the green line. The unique vibrato circuit of this amp has intrigued me for a long time. Jan 20, 2020 · Hoffman Amplifiers Tube Amp Forum, Vox AC-15 plus Matchless Reverb build - Sluckey schematic. Do you prefer the EF86 channel or the Top Boost Channel? Apr 7, 2024 · Greetings Friends. Main Schematic AC30/6 Bass model. R38 on your schematic is 2k2. I like both tones. Vox V301J and V301E Single Manual Continental Organs; Vox V301H Single Manual "California" Continental Organ (1966) Sep 16, 2024 · Vox AC15 CC1-Crackle on certain notes Check EL84 bias resistor R38 on schematic. 0 ©2016 VOX AMPLIFICATION LTD. 94 Kb. VOX AC15C1/C2/ CH TABLE OF CONTENTS Schematic Diagram:2 Hookup:12 Cable Location:16 PARTS LIST: 17 Sound Test Setting:20 Issued: Jan. JMI Vox AC15/4 - Normal Channel - EF86 Tube While the preamp sections of most amplifiers were powered by dual triode tubes such as the 12AX7 and 12AU7, Vox lead engineer Dick Denney took a different path. Pictures of surviving amps, from the Vox AC80/100 to the final iteration of the AC100 Mk 2; schematics; material on components, suppliers and manufacture. If you're talking about the Vox AC30/6 it has no EF86, just a normal, bright (or top boost) and vib/trem channels. com Vox New Product Bulletin: Vox AV Series Analog Valve Amps AV15, AV30 and AV60 - 2016 The Vox AV Series amplifiers featured a 12AX7 tube in the preamp section and also used a second 12AX7 to drive the solid state power amp section. 18. One half of the tube powered the preamp, the second half served as the driver for the 15 watt solid state power amplifier. Vox Ac 15 Tbx Schematic Read/Download Vox ac30 find the better deals on AuctionsOmatic. Aug 12, 2022 · Hoffman Amplifiers Tube Amp Forum, too much gain on Ef86 Vox Ac15. Apr 24, 2006 · A couple years ago I made the attached head using the Matchless DC30 schematic. Consider the power ratings shown in the schematic a minimum. Re: VOX AC15 [JMI] Replica Layout and schematic Post by Turret » Thu Nov 28, 2013 3:49 pm Macso, I will email you what I think it might be, if you'll find the time to correct me, please do Internal speaker: 16 ohm, 12", 30 Watt VOX/Wharfedale Custom—model AC15CC1 8 ohm 12", 15 Watt VOX/Celestion AlniCo Blue—model AC15CC1X Valve/tube complement:2 x EL84/6BQ5 & 2 x 12AX7/ECC83. This one is 14 watts. Now it's up to you to choose between 66Strat suggestion for 47, 22 and 22uF, respectively or mine for 44, 33 and 10, which is closer to the original schematic but less usual even though stacking caps (the two 22uF in parallel side by side with the third 33) also shows on renowed amps. The AC15C1 was a dual channel amp, the AC15CC1 was a single channel design. Welcome To the Hoffman Amplifiers Forum January 05, 2025, 09:04:34 pm The all tube, 15 watt amp also featured a pressed board enclosure with all the Vox cosmetic touches: basket weave vinhyde, brown Vox diamond grill cloth, gold string, gold plated logo, gold grill molding, white grill piping, a Vox logo handle, and eight black plastic two pin corners. A friend is the happy owner of a Vox AC15TB, 1996-2004 vintage. His idea was to develop a layout for a single chassis, Marshall style amp. The OTTB puts the top boost channel of a VOX AC30 into an effect pedal. What kind of guitar and pickups are you using? Check out C5 and C6, the output tube coupling capacitors. In half power, the high end is mellowed slightly giving you a whole load of new tonal characteristics to explore. File Size: 184. AC15HTVH Schematic from Service Manual. JMI Vox Schematics OS/031, OS/038 and OS/011. AC15C1. Introduction. To commemorate the 50th Anniversary of VOX guitar amplifiers, Vox introduced the AC15H1TV. Vox AC15 1996 Poweramp Schematic Diagram. Here is the schematic in 4 parts with some notes. 8. AC Series AC4 - 1960 AC10 - 1960 AC10 - 1960-B AC10 - tube layout diagram - 1960 Jun 17, 2009 · I'm researching a Vox AC15H1TV for my next build and I know this much: Ch. Vox AC4. I'd built another at 30 watts and sold it so I knew the schematic. Phase Inverter: AC15 or AC30 Schematic TONE CUT: AC15 or AC30 Schematic Mar 3, 2014 · I've been going through the original hand-drawn Vox JMI AC15 schematic dated 1960, drawing number 0A/031, slowly preparing to buy parts, and there is one discrepancy between that schematic and yours. 1 x12 Vox Heavy Duty "Bulldog" speaker. It contains a table of contents listing sections on the schematic diagram, hookup diagram, cable locations, and parts list. After Korg purchased Vox from Rose Morris in early nineties, the reissue AC15TB was On the Vox AC-15 schematic OA-031 from the early 60s, there's clearly a 3A slo The VOX Showroom - Vox AC15TB and AC15TBX Amplifier - A Look Under. Est. classic VOX sound you’d expect. Also for: Ac30c2, Ac30c2x. There are hundreds of pages of Tube amp information on my library page. JMI Vox Schematics OS132, OS/133, OS/134, OS135/ OS/136 and VSL Schematic OS/184 . (See original schematic) NOTE 4: Fast/Slow switch can be a push/pull switch on the DEPTH control. Learn how to repair and modify your Vox AC15 amplifier with this detailed schematic diagram. Enjoy! VOX R&D Team Vox_ac15. Top jack for high Input, and bottom jack for low input. Reverb circuit schematic January 1965. Internal speaker: 16 ohm, 12", 30 Watt VOX/Wharfedale Custom—model AC15CC1 8 ohm 12", 15 Watt VOX/Celestion AlniCo Blue—model AC15CC1X Valve/tube complement:2 x EL84/6BQ5 & 2 x 12AX7/ECC83. xipohy yke bfwypfwy hdrb foyovgd jiaip exvjq zpcn mcwbqt aich pqp jfzp vxldjaa chsyk zazteqvdh