Tube amp schematics, tube amp information, tube amp projects. Tube amplifier schematics audio tube schematics, here youll find a modest collection of some interesting audio tube amplifier schematics, audio innovations, audio note, audio research, beard audio, conrad johnson, copland, dynaco, grant amplifiers, jolida, harman kardon, heath kit, magnatone, marantz, mcintosh, quad, radford. The 1964 tuner and amplifier owners guides are 20 pages each. Here you will find our collection of fender schematics.
This is a low power guitar tube amp suitable for practicing, recording or miking through a pa system. B12nc amp schematic 1964 joe piazza b12nf amp schematic 1968 joe piazza b12xt amp schematic 1967 ampeg sb12 amp schematic with 6l6gcs joe piazza sb12 amp schematic with 7868s joe piazza b15n. Note that the 6ca7 el34 vacuum tube is, in actuality, a pentode tube, although it is shown in the schematic as a tetrode. A tube amplifier chassis contains lethal high voltage even when unpluggedsometimes over 700 volts ac and 500 volts dc. User manuals, marshall amplification amplifier operating guides and service manuals. Weve done the work for you and found 5 of the most popular high end tube amps. There are hundreds of pages of tube amp information on my library page. Partial manuals normally include everything apart from construction details. Never touch the amplifier chassis with one hand while probing with the other hand because a lethal shock can run between your arms through your heart. Also for the filament, though this tube was designed for ac on the filament. To better grasp how a guitar amplifier accomplishes these functions, lets take a walk through the inner.
The tube amp library of information click the link above for tube amp info, schematics, board building information, projects, mods, transformer diagrams, photos, sound clips. There is also a huge library of effects and solid state schematics. All of these pdf files are available for free download. Many files on this site, especially scanned documentation, are in adobe acrobat pdf format. Well, bruce rozenbilt managed to combine the srpp with a cathodecoupled amplifier. Fortunately, it is very simple to build these amplifier circuits when good tube circuits and good output transformers are available. We figured these are good for about 20 watts single ended. The last thing you want is to have that moment of regret when you install a new tube amp and find that you overpaid when a cheaper priced model would have had all the same features. Edcor transformers and a glassware audio ps14 supplies hv and regulated dc to all tube filaments. The most popular highend tube amps in the market top. Electronic amplifier circuits, joseph petit and malcolm mcwhorter, 1961, 325 pages. I was able to collect a book of old bogen tube amplifier service manuals and schematics. Heyboer told me these will handle 144ma full duty and probably a bit more for audio duty.
Like all ampeg products, your svtcl amplifier is designed by musicians and built using only the best of components. The following schematics are free of charge and available for your sole use by registering as a user. Tube amplifiers, schematics, parts, triode amplifiers. Never touch the amplifier chassis with one hand while probing with the other hand because a lethal shock can run between your arms. The two mirrored audio streams feed the two power tubes for pushpull operation. The book scans below are in adobe acrobat pdf format. The controls are a glassware a3 ministepped attenuator. Each page can take approximately 3 to 12 minutes using 56.
Any conventional stereo amplifier can be operated in bridge or parallel mode. The tube amp library of information click the link above for tube amp info, schematics, board building information. See mat garmans jtm451962 mod page for more information on modifying the jtm45 and 1962 reissues back to the original 60s jtm45 specs. Stromberg carlson ase8 with 7355 output tubes strombergcarlsonase8 amplifier schematic. Aug 12, 2015 12au7 guitar preamp schematic how to use in a guitar amp. Amplimos one stage amplifiers, amplificatori audio monostadio. The preamp circuit and features are similar to those on a fender tweed era princeton. Already known as the bible of tubes and tube amps, the tube amp book is now even better. Dc voltages as you can see, i used dc voltages everywhere. This is a 6v6 push pull stereo amplifier that is based on age old dynaco 6v6 circuit that many have built. Tube amp schematics, ampeg, marshall, fender, gibson, hiwatt, magnatone, matchless, mesa. Products integrated amplifiers preamplifiers power amplifiers dac videos vital info extended tube life less power, more bass point to point wiring adaptive autobias triode ultralinear switching how to buy a preamp dont overpay.
These factory service manuals including schematics are scanned in high resolution directly from the original magnavox factory service manuals published by magnavox from 1937 through 1942. If you have not been trained to work with high voltage then have an amp technician service your amp. Magnavox radios, phonographs, record changers, and tape recorder factory service manuals with schematics. These high resolution downloads of the original photofact service folders cover 1946 through 1963. Tube diodes work the same as solid state diodes current only flows when the anode or plate in vacuum tube terminology is has a positive voltage relative to the cathode in most rectification circuits the plate is attached to the power transformer and the cathode to the dc power supply section see handouts for schematics. See the marshall amps 1962 page for more information on this amp. Univibe w manual 1 160 kb, 2 185 kb guitars westbury custom pickups 12kb this is the real schematic for how the westbury custom and super custom were wired with the. Free tube tester data sheets and manuals for hickok vacuum tube testers and test equipment. Schematic heaven tube amp schematics, electronic schematics. Please visit my tube amplifier forum heres the place you can go to ask tube amplifier questions. In fact, i did all this research to design a special series of new toroidal output transformers, the socalled specialist series. The amp consists of two sections, the audio circuit and the power supply. Manuals are listed alphabetically by model and have been taken from our archives and converted into pdf documents.
If you see a problem with any of the schematics, please email me so i. Download 365 marshall amplification amplifier pdf manuals. So youll need to download the free adobe acrobat reader via the link below to be able to view schematics. These are the wheatfield audio ha1 and ha2 tube headphone amps, which i designed a long time ago. Pickup 1 tube preamplifier for magnetic phonc pickup 2 tubes preamplifier for tapehead preamplifier for lowoutput micr mixer balancing unit for twochannel stereophonic system. Projects, mods, transformer diagrams, photos, sound clips. Available both as web pages click the title and as pdf files for easier.
Feel free to send us your hifi audio schematics and we will add them here. The 5e3s phase inverter v2b puts out two audio streams, one normal and one inverted. If you see a problem with any of the schematics, please email me so i can fix the problem. Pp el34 tube amp schematic by mullard with dynaco a420 ef86, 6cg7 input. This deluxe revised edition contains 40% new material, with a comprehensive az section covering all the great tube amp manufacturers, with histories, photos and information. Figure 2 shows the schematic of the tube amplifier i used for all the tests. I used them on all kinds of amps from little bitty things up to kt88 and they rocked. These pdf files are highdefinition, suitable for laserquality, 8.
Amplifiers especially tube amps contain high voltages that can kill. Marshall amplification amplifier user manuals download. If you have built any of these circuits, we would love to hear from you so send us your comments. Warning if you are not a qualified technician please do not attempt any repair you are not confident with.
Many of the files here are just schematic diagrams but some include additional information such as specifications, and a few are complete manuals. For technical books, tube data, vintage data, transformer data, and mcintosh data. Mullard el34 pushpull tube amp schematic dynaco a420. Resistors with names such as rgain1 and rgain2 represent potentiometers, with the node between the resistors being the wiper. Free antique radio schematics, manuals, and schematics for. Note that some early model numbers are a guess as hickok produced many early items that had no model number on unit or produced many variations without changing model numbers. This schematic is tested and you can find it in a youtube video on my channel. Marshall schematics tube amp schematics el34 world. Economy phonograph amplifier lowcost hifi amplifier. Sams photofacts sams photofact schematics, service manuals. Heathkit schematic and manual archive vintage radio info. Acoustic ada allesandro ampeg ashdown bad cat bogner carlton carver carvin crate dumble.
Do you have a fender guitar or bass tube amp that needs repair or modifications. This is our collection of diy and hifi audio schematics. Here weve listed our collection of guitar amplifier schematics. This is the improved pushpull mullard el34 tube amplifier circuit. This dynamically powerful bass amp delivers a thunderous 300 watts of unsurpassed quality, reliability and tonal flexibility, offering the classic vibrance of tubes as well as contemporary features. Mullard el34 pushpull tube amp schematic with dynaco a420 transformers. Getting started all the files at schematic heaven are in adobe acrobat form. Combining more than two amplifiers can be effected using the basic. Bg122 a video starting with the basics of reading schematics, slanted towards those involving vacuum tubes.
Although the circuit remains the same, two aikido gain stages with passive riaa. Hickok documentation, manuals, schematics, and catalogs. I doubt anyone will purchase one of these tanks for its intended use but what a plethora of dandy amplifier parts. Click the image to view the full size readable annotated schematic. The amplifier circuit shown uses the dynaco a420 audio output transformers which have a primary impedance of 6600 ohms. A tube amplifieris very vulnerable to hum, because the input grid has a very high input resistance. Tube amp schematics index page there are over 3500 tube amp schematics and other types of schematics in the el34world schematic library. Fender diagrams, schematics and service manuals download for free. If you need a guitar amp schematic for your amp repair that is not listed here, contact us and well try to locate it. Mullard circuits for audio amplifiers primary windings. Understanding vacuum tube amplifier schematics basics. Peavey diagrams, schematics and service manuals download for free. Enclosure youre going to need something to put your amp.