Over 5,000 items in stock in stock status on products 99%. Note that all these links are external and we cannot provide support on the circuits or offer any guarantees to their accuracy. We have decided to offer these same products to the general public directly. Guitar amp repair repairs to your guitar amp for all types of amplifier from combos to heads, electronic servicing is provided to valve tube amps and transistor solid state alike from popular manufacturers and brands such as fender, marshall amplification, blackstar,mesa boogie and orange to more obscure brands. To bias a tube amp there is a need for a multi meter with 200 milliamps. The sound of a valve amp cranked nice and loud is synonymous with rock and guitar heritage. How guitair amplifiers work how to make amp repairs properly and safely how to troubleshoot tube and transistor amps of all sizes details on typical amp circuits and much more. Note that most gibson style tuneomatic saddles and bridges do not come with a string notch and will be subject to the additional charge. Guitar repair you wont believe what i found inside. Back then, when two channels and a master volume on an amp already counted as comfort features, engls futuristic concept was equivalent to a landslide. In this video, well see what is wrong and fix er up.
The rogue g10 guitar amp produces a variety of tones in a compact size. The grid leak resistor bleeds off unwanted captured electrons grid current to keep the grid at zero volts dc. I get a lot of questions emailed to me from amp repair novices. Also provides 10 troubleshooting flowcharts, voltage charts for typical amplifiers. How to service your own tube amp, a complete guide. San marcos guitar and amplifier repair services whodoyou. Want to learn everything you need to know about the basic fundamentals and basic electronic principles going on in a vacuum tube guitar amp. Some people have a favorite brand, others swear by nos new old stock. Parts is parts is the authorized national parts distributor for korg parts.
Amp service and modifications we specialize in the repair and tone resurrection of vintage and modern tubetype guitar amps, bass amps, pa amps, analog mixing consoles, echoplex, space echo, and tube hifi amps. Find kits and modifications for your vintage fender. We carry over 3,000 items and are slowly updating our online inventory. So heres a basic overview of how amps work and what you can do to start tweaking your own. Although ive never repaired amps for a living, i have repaired a lot of amps through the years.
Instrument repairs, maintenance and modifications guitar. Artisan luthiers can repair and service solid state and tube amps for jack repair, speaker replacement, wiring repair for fender, marshall, ampeg, vox, crate. So, i got a job working on amps at a local tube amp repair shop. Mar 03, 2009 i find myself getting more and more fascinated by the inner workings of amps and electronics, and now im interested in learning about amp design and repair. The first programmable guitar amp was simply a sensation, something that had never existed before. Upgrade or just repair those vintage guitar machines. A non technical visual guide for identifying bad parts and making repairs to your amplifier james bingham 3. Being a degreed pro electronic tech, imo, to understand amp repair you need to get a grasp of basic electronics, the math behind it, and own and understand the basic test equipment needed for the job at hand dvm, oscilloscope, signal generator, bias meter, etc. A great book on tube amp repair and it is a free pdf download.
Some of the guitar wirings diagrams are a bit confusing as they are in black and white. Baltimores best tube amplifier repair shop established 2008 we are now appointmentonly so call or email to schedule pickups and dropoffs. A well organized and easytounderstand approach to guitar amplifier repair covering basic electronics, reading schematics, understanding tubes and transformers, tube biasing and use of test equipment. Crate amplifier users guide guitar amplifier with digital signal processing fxt15. Guitar amp repair pro audio service accutech audio ct.
A viewer to the channel sent this fender champion 30 solid state amplifier for repair. There is something about the glow of hot glass and the imposing sight of weighty iron through the grille that seems to sum up so much of whats cool about the electric guitar. Vintage fender amp repair modifications, repairs and. I recommend that if you dont already have it you download the latest version of adobe reader. Some of the tube amp designs of the last 60 to 70 years have oozed so much aural and visual mojo that its difficult to imagine. If you insist on only nos tubes in your amp and you are willing to pay the premium price, please tell me before the repair or estimate is complete.
In 1970, don randall founded randall amplifiers with a focus on the technology surrounding the use of solidstate circuits instead of vacuum tubes. Early guitar amps used vacuum tubes to amplify the sound, but when the transistor was invented, amplifier manufacturers found a more reliable and cheaper technology. We specialize in the repair and tone resurrection of vintage and modern tubetype guitar amps, bass amps, pa amps, analog mixing consoles, echoplex, space echo, and tube hifi amps. On the days were open, someone will be here to help you pick up and drop off your gear. Expert repair and restoration of vintage tube guitar amps, harp amps, and studio equipment at skip simmons amp repair. How guitar amps work and what you can do to start tweaking your own. Also works with hiwatt handles and other british design amp handles. Guitar amplifier repair training and education program information. Find the user manual you need for your audio device and more at manualsonline. Located inside every guitar center store, our staff of experienced, certified technicians will keep your guitar or other stringed instrument in peak playing condition and help you get. Fortunately, there are still a few nos bargains available so we do use them in some cases. Ill be using my own 65 fender deluxe reverb, which is an open back combo amplifier, along with a small but perfectly formed selection of celestion speakers. Saddle or bridge replacement requires a setup with new strings.
My 20 lesson correspondence course is the fast track to learning vacuum tube guitar amp basics. Under the bridge of the guitar there often is a grounding cable, which makes you part of the electric circuit when touching the strings. Amp volumeuse the amp volume menu to adjust the loudness of the selected guitar amp type. Well get back to regular hours and fixing your gear. Some circuits would be illegal to operate in most countries and others are dangerous to construct and should not be attempted by the inexperienced. Orders placed after 9am on friday will be shipped the next business day. Apr 28, 2019 this hensel artist guitar has been subject to some of the weirdest repairs ive ever come across. Parts is parts, established in 1982, is the worlds leading supplier of amplifier and guitar parts, and your official vox and korg parts center. Solid state amplifiers are considered to be more reliable than their tube counterparts, but problems can occur in solid state amps. Customers are invited to call and discuss repairs, pricing and logistics to and from our facility in columbus, ohio. Fender frontman 15r troubleshooting, repair, and service manuals. Free crate amplifiers stereo amplifier user manuals. Do you have a fender guitar or bass tube amp that needs repair or modifications. We have a great selection of tolex style amplifier covering as well as many styles of amplifier grill cloth for restoring vintage fender.
We also repair many solid state and hybrid guitar and bass amps. I find it difficult to learn from a book or dvd without handson experience and being able to ask questions and be warned of pitfalls by an experienced amp master. Still others say i dont care, just use the cheapest thing you can get. The guitar diagrams vary from fender to gibson and others. Guitar amplifier troubleshooting, repair, and service manuals. View and download crate gfx15 owners manual online.
The free shipping option allows tubedepot to choose the most appropriate carrier and service. The owner needed it for a gig in two days, and was very anxious. Oct 12, 2019 associates degree programs in electrical engineering technology can teach students the technical skills involved. Andrews amp lab expert guitar amp repair, fine hand wired. Thank you for investing in a radial powertube microphone amplifier. Im extremely interested in learning to service tube amps, and one day design and build them. Ideally id like to learn enough to be able to do amp repairs since you never see an amp repair shop around here that isnt swamped. Repairs guides for the fender frontman 15r, a small, 15 watt, practice guitar amplifier. Our repair tech called me when the obvious fixes had no effect at all.
A high quality reprint of the 1973 rca receiving tube manual technical series. Trebleuse the treble menu to adjust the highfrequency tone of the selected amplifier type. Find the user manual and the help you need for the products you own at manualsonline. Guitar center repairs is your goto spot for expert stringed instrument repairs, upgrades and servicing. Guitar amplifiers usually consist of four sections, hence a systematic diagnosis of the same will help us fix it. Skip simmons amp repair vintage tube amplifier repair for. Also some files are djvu so you need djvu viewer to open them. The guitar amplifier preventive maintenance and repair guide. We offer a wide range of repairs and servicing from guitar restrings to amplifier repairs by our inhouse service department and network of local agents as the range is vast please call your local rockshop store with your requirements. Catalog parts is parts guitar parts, amplifier parts.
Guitar amp repair repairs to your guitar amp for all types of amplifier from combos to heads, electronic servicing is provided to valve tube amps and transistor solid state alike from popular manufacturers and brands such as fender, marshall amplification, blackstar,mesa. Oct, 2008 one of our amps came in for warranty repair. Andrews amp lab expert guitar amp repair, fine hand. How to repair solid state guitar amps our pastimes. When doing wiring work on the tone and volume control section in the guitar, please make sure that the guitar cable is not connected to the guitar. Gx15 musical instrument amplifier pdf manual download. A guide to basic tube amp maintenance guitar world. The design, modification and repair manual for vacuum tube guitar. Amplifiers especially tube amps contain high voltages that can kill. Designed as a small and portable 1 watt amplifier loaded with all the features of big amps, the project was fully developed using only open source toolslike kicad, a design suite to create schematics and layouts in any platform.
Guitar amplifier repairs amp repair pro audio service ltd. If your guitar amp goes on the blink, you may need to repair it on the spot. Conduct basic repairs to get back to playing with help from a professional musician in this free video. Long island guitar amp repair by tufmar, guitar amplifier repair and service specialists. Repair and disassembly guides for guitar amplifiers. Vintage amp repair performs maintenance, restoration and custom modifications on all makes and models of audio tube amplifiers. You must have adobe reader installed to view a pdf file.
A well organized and easytounderstand approach to guitar amplifier repair covering basic electronics. Jack darr tube amp book for free the steel guitar forum. If you are looking for something that you dont see here, contact us and well check the warehouse. The book scans below are in adobe acrobat pdf format. Do you have a crate guitar or bass tube amp that needs repair or modifications. It helps a great deal if the reader knows how to read basic schematics. Valve technology was predominately found in televisions and radios from the mid to the late 20 th century, before transistor technology advanced and took its place. We also carry many parts for vox amplifiers, gretsch guitars, and much more.
Great book for a reasonably short introduction to tube amp design for the nonengineer. For an upcoming years free subscription, and our current issue on pdf. Guitar tuner your mustang amplifier has a builtin tuner mode that turns the screen into a guitar tuner. Warning if you are not a qualified technician please do not attempt any repair you are not confident with. There are no spare or replacement parts inside and opening the unit should only. Sep 02, 20 roy blakenship, a legend in guitar amplifier repair, design and manufacturing, takes us through the steps of repairing different kinds of antique, classic and contemporary tube amplifiers. As you might guess, it had failed suddenly on him about two months earlier and only got to us when the gig was two days away. Today, there are many more choices of tubes than we had even a few years ago but only 3 major factories still producing tubes. How guitar amps work and what you can do to start tweaking.
The following guidelines should be taken into account. Tonetron amplifiers tonetron ampshand built guitar tube. Amp select lead1, lead2, drive1, drive2, crunch1, crunch2, clean1, clean2, reverb, mode,, store, recall display amp select display led x 8 mode display led x 3 reverb type display x 3 7 segment led x 2 digits indicator trim level display led green trim clip display led red connection jacks input highlow. Also provides 10 troubleshooting flowcharts, voltage charts for typical amplifiers, and many modif. If you see a problem with any of the schematics, please email me so i can fix the problem.
Steves amps guitar and bass valve amplifier repair. A tube amplifier chassis contains lethal high voltagesometimes over 700 volts ac and 500 volts dc. Use this 14 jack to connect reduces the high frequency output. In some short circuit conditions this might lead to lethal accidents. Tube amp schematics, ampeg, marshall, fender, gibson, hiwatt, magnatone, matchless. There is an opening in the board to reach the upper legs. Electrosmash just released an open hardware guitar amplifier called the 1wamp.
Guitar amp repair amplifier wiring, jack, speaker fender. Quick fix view pdfs on web, adobe acrobat reader adobe support. Basic theory a 21stcentury approach to understanding preamp, power amp, and power supply design fundamentals of guitar amplifier system design a structured methodolody for crafting an awesome guitar amplifier. For several years we have supplied retailers and repair shops with hard to find materials for vintage guitar and amp repair and restoration. I will repair guitar and bass amplifiers, valve hifi equipment, and all marshall equipment. Crate amp schematics to assist you with your amplifier repairs and modifications. You will require adobe acrobat pdf reader to view these schematics. Jack darrs electric guitar amplifier handbook details the following. Manufacturer of custom handbuilt guitar tube amplifiers guitar amp repair, restoration, and modification tonetron amplifiers builds guitar and bass amps based on your requests, whether it be a clone of a vintage amp or a unique design or one of our standard models.
Gfx15 musical instrument amplifier pdf manual download. The science of electric guitars and guitar electronics. Best way to repair these amps is dont buy one in the first place. A well organized and easytounderstand approach to guitar amplifier repair. If you have not been trained to work with high voltage then have an amp technician adjust the amp s bias. After the virus business my luthier partner and i will be starting sales of selected vintage amps and guitars, to include amps and guitars restored by us and sold on commission. A complete guide for the curious musician mitchell, tom on. Free crate amplifiers musical instrument amplifier user. Overall, the book has some great guitar maintenance and diagrams to give you some basic starting points. The guitar signal flows through the grid stopper resistor to the tubes grid, then out the tubes plate, through the coupling capacitor and on to the next amp circuit. Guitar amplifier repair training and education program. I have read mine over and over, gotten more troubleshooting technique from it than i picked up in the first 5 years of vintage amp service i was doing. Vintage tube amplifier repair for musicians nationwide.