Cracked vox ac30 schematic

The schematics below come from the service manual pictured above, issued by thomas organ in september 1967. North coast music secured the original 1960s era plastic injection molding tooling used to produce various original vox parts, including the one pin and two pin plastic corners and the us version of the vox amp handle. Also going to see if i could pull the rectifier switch since its virtually useless and dont use it. It sounds absolutely gorgeous and i bitterly regret over and over again selling my 1960s one. Employing a quartet of el84 power tubes, the ac30 custom pumps 30 watts of remarkable tone through a. Shop for the vox custom ac30c2 30w 2x12 tube guitar combo amp and receive. But do not start with an ac30 from scratch as your first project. Characterised by its jangly highend sound it has become widely recognized by british musicians and others. Includes 247 tech support setup, connectivity issues, troubleshooting and much more. Vox ac30 1960 schematic vox ac30 1978 schematic vox ac30 1986 schematic vox ac30 1989 schematic vox ac30 1990 schematic vox ac30 93pa schematic. Vox ac30c2 sch service manual download, schematics, eeprom. I prefer the thick, overdriven sound achieved by brian may of queen. Links are provided on this page to download the assets listed.

The voltages in a vox ac30 can kill even after the power has been switched off. Vox ac30hw schematic im looking for the schematic of. Jmi era vox ac306 normal rev7 jmi era vox ac306 bass rev7. The instructions below are provided as a guide to saving the files to your computer.

Regiss bohemian rhapsodyne guitar amp attenuator for the vox. The ac30c2 makes use of 3 x 12ax7 preamp tubes and use 4 x el84 tubes. As a single channel amp, the easiest way to add a ef86 channel is to add a second channel. Other breakdowns covered after the manufacturers warranty expires. He basically wanted it all putting back to full working order, with the intention of selling it on ebay. It was brought to me by a local gentleman, together with the story of how this vox has stood, unused, for more than 20 years. Vox amplug 2 ac30 guitar headphone amp musicians friend. A guide to the vox ac30 valve amplifier, originally intended for service engineers but also popuplar with vox enthusiasts, the guide contains a wealth of technical information, schematics,new component layouts, photographs and historical information. Vox diagrams, schematics and service manuals download for free. The ac30 has a reputation for being a clean, jangly amp with chime. I got my hands on an old vox ac30 some time ago, and i have some major problems with it.

Its divided in 5 parts so it is computer friendly and for those who want to get it all in one click theres a link to the pdf file at the end of the post. Would just like to say keld ampworks did a cracking job fixing my ampeg. How to install new guitar amplifier tubes in a vox ac15 c1. Jmi vox ac30 with top boost in panel the vox showroom. Vox ac30hw schematic im looking for the schematic of this version. Thats not very far what youll get out of the ac30vr. I have the vox ac30 cc2x, it has the blue speakers, made in china. The mildly interesting vox ac30 reverb problem the. The vox showroom vox ac304 four input guitar amplifier.

Vox amp schematics to assist you with your amplifier repairs and modifications. The guys over at confetti in nottingham brought me this vintage ac30 repair. Vox ac30c2 guitar combo amplifier for those who crave more power, the ac30 expands on the captivating sound of its little brother by doubling the wattage. From a few schematics i found it looks like the pot just connects ground on one end and to another. They seem to be a pita compared to other vox ac30 clones. Vox ac30hw schematic im looking for the schematic of this version read 2353 times 0 members and 1 guest are viewing this topic. Besides the ac100, the other britishmade amps encompassed are. Psionic audio services amplifier modification services. While the partial schematic above only hinted at it, i purposely kept it out of full view until now. Ive heard it quite often the new vox ac30s are pure shite. So im curious, if you were going to recommend an ac30 to someone, what are the good years youd recommend, and which are the bad youd recommend avoiding. The vox amphones ac30 active guitar headphones plug directly into your.

A stone cold crazy guitar amp attenuator for the vox ac30. Ac30cc2 schematic heaven, tube books, schematics galore. Psionic audio offering the triad, the new telos, the 3. Ive never cracked the lid on a vox ac15cc, but heres what the schematic tells me. If you study the schematic closely, you may note the following.

I run the amp with the two channels patched together, and one channel cleaner. The vox ac30 has a 4k pp ot, and if you look in the rca receiving tube manual you will see that 8k is recommended for the platetoplate load in class ab at 300v for two tubes, so the optimum class ab loadline would be 4k for four tubes as it is in the ac30. Vox ac30 cc2 schematics readdownload vox ac30 cc2 one of the best and most beloved guitar amps in. Hi guys, since vox staff thinks theyre still in the 70s and therefore refuse to send the official schematics i decided to reverse engineer mine. Shnobel shows the vox ac30 6 tb mullard tubes mercury. I would like to bring to your kind attention that the ac30 chassis and faceplates are available at uk uk based retailer. Based on the classic ac30 design, the allnew custom series ac30c2 and ac30c2x offer numerous uptodate enhancements, delivering the most versatile ac30 design in vox history. An evolution in tone vox custom series amps offer two channels.

Vox ac30 quick question discussion in ampscabs tech corner. Here is a quick look at the different models and my recommendation on the two best versions to buy. Question whats the difference between a vox ac30 and a. This site is run by unpaid, volunteer moderators, some of which have commercial interests in the guitar amplification business. It appears to be a 1962 jmi era vox model but im an amp tech, not an amp historian, so i may be mistaken. Treble version, redrawed schematic and more text to be fallow. This ac306 super twin was the first amp head produced by vox. Details about vox amplug ac30 guitar headphone amp fuzz face schematic. At the moment, im using some of your ideas rebuilding a pignose g40v. Shortly after the confetti 1962 vintage ac30 repair arrived, this vintage vox repair.

The reason to do this is in regards to halonfilled bulbs, skin oils can cause the bulb to heat unevenly, and crack. Click the link above for tube amp info, schematics, board building information, projects, mods, transformer diagrams, photos, sound clips. This was the third of three vintage vox ac30 repairs that came to me over a few. Drops, spills and cracked screens covered from day one. Sortingout the worst vox ac30 in the world two pictures of the ac30, as received. The foot switch checked out, so we loaded it up and worked on it at the unbroken string lab. The vox customer ac30c2 tube amp and all vox custom amps can use the optional vox. The circuit is identical to the one i used in my first diy attenuator, the ampwell house. But this clampon ferrite choke does not appear on the schematic. There are hundreds of pages of tube amp information on my library page. We have 3 vox ac30cc2x manuals available for free pdf download. Vox released the diminutive amplugs back in 2007 to great applause from the guitar market. They will all attempt to the best of their abilities to not interfere with commercial discussions.

View online or download vox ac30cc2x owners manual. A good guitar and an ac30 can be the quickest trip to tone heaven you can take. Many of the circuit diagrams found here are the only available copies passed on from previous vox manufacturing companies and in some cases the visual quality may be poor. It is one of the classic most recognisable british amps to this day. Lyle caldwell psionicaudio pisonic psyonic syonic sonic triad 3. The real secret to the vox ac30 tone is concealed in the phase inverter. Marks likenew vox ac30 worked well, except nothing came through the reverb signal path. Well, what can i say, ive seen many bad amps in my time but i think this vox has to hold the title of the worst amp in the world well certainly as far as vox amps go anyway. Vintage vox amplifier collection the vox ac30 guide. Check out the vox showroom for more historic information on the vox amps.

Korg vox ac30cc2 ac30cc2x sm service manual download. Vox amp heaven schematics berkley cambridge pacemaker. Weber sells an ac30 like kit called the 6v30 which is moderately close to a 60s 3channel ac30, but you get only parts and a layout and schematic, and youd want to upgrade some of the parts and the transformers if. All things said, i really have a hankering for one of those blue ac15c1s. I have 2 channels which i switch back and forth between using a select box footpedal. Assembly parts list ac30h2 rn part code part name description 1 530000000057 golden logo golden vox 2 530000000977 front baffle black spray brown diamond cloth 3 530000000915 vox bronzing badge black abs text bronzing 4 530000000056 12 speaker celestion alnico blue 5 screw m525 black round head 6 530000000916 rubber feet with steel washer inside 7 wood screw m420pa round head. This is the schematic diagram for the vox ac4 amplifier.

The fullyanalog circuit has been totally reworked for an even clearer and more present sound. Ac30cc2 musical instrument amplifier pdf manual download. Vox introduced an ac306 six input head with a matching 2x12 speaker enclosure in the 1962 catalog. The vox ac30 is a guitar amplifier manufactured by vox. So, plugging a guitar into the handwired ac30h2 heritage combo, made to celebrate voxs fiftieth anniversary, expectations are going to be well, high. Vox ac30 nontb 65 vox ac30 tb reverb 75 arbiter vox ac30 h2 2007 songs. New reactor circuit based on the valve reactor circuit featured in vox amps. My vox ac30 cc2 has lost speed control on the tremolo. As was common for amplifiers designed in this period, the original vox ac4, ac10, ac15 and ac30 models were equipped with a primitive single control tone circuit to roll off treble response. True bypass switching takes the entire effect loop out of the circuit. The tone control vox introduced their first amplifier lineup in the late 1950s and early 1960s. Its bright and i play a fender through it, so ive done some minor modifications to take some of the brightness out of itnothing major. Just change the tubes from time to time, other than that its a. The concept was to create a small headphone based practice amp that could plug directly into the guitars jack socket with authentic ac30 tone other models were also available allowing for very compact personal practice.

His homemade guitar and unique tone are famous throughout the guitar world, and a big part of his tone is. Its definitely an ac306 model, only made in smooth black vinyl in 1962. Normal which is my clean channel, and top boost which is my dirty overdrive channel. Vox brian may ac30 2006 conversion procedure to the dave peterson ac30 specification danger this document is for use by qualified and experienced amplifier technicians. It was introduced in 1958 to meet the growing demand for louder amplifiers. Below is just the phase inverter tube, and the associated circuitry. Of course, the next vox i get, barring some extraordinary deal, will be a heritage ac15. The amp in question is a 90s era vox ac306 tb, with normal, brilliant, and maybe link or post the correct schematic for this amp and myself and others can. In early 1963, the ac306 super twin, along with all other amps in the vox line, transitioned away from fawn to a pebbled black vinyl. Due to coronavirus covid19 we have limited staff working on location.