Ampeg has designed and built lots of quality guitar amplifiers throughout the years, including combo amps like the ampeg ss140c. My last bass amp was a hartke 1x12 combo from the early 90s. After downloading, the file may take a moment to open in the browser. Ampeg ba110v2 1x10 40watt bass combo amp with scrambler. The schematics are different, so that might help you if the schematic you posted happened to be slightly off.
Ampeg diagrams, schematics and service manuals download for free. The fx rack features an onboard noise gate, hostsyncable power soak, and prepost switchable eq filter controls, allowing you to put the finishing touches before or after mixdown. The year of manufacture was identified using info from ampeg archives and the cts pot date codes as follows. This amplifier is the ampeg j12a combo tube amplifier circa 1964 with one rola 12 speaker, tube tremolo circuitry, two 6sl7 preamp tubes and two 7591a power tubes providing around 15 undistorted watts. Index of supportfilesschematicsg seriesg12 gemini i ampeg. Ampeg reverb rocket 12 schematic ampeg reverb rocket 3 amp schematic ampeg sb127868 portaflex amp schematic ampeg sb12 portaflex amp schematic ampeg schematics. Made in usa to original specs by our friends at heyboer. It does not make it easier that i can not find the right schematic. In this era, the model was also designated as the j12d jet and used a solidstate rectifier. B12n schematics b12nb schematic b12nc schematics b12nf schematics b12nfjp schematics b12njp schematics. Ampeg jet model j12 20watt 1x12 guitar combo 1960s reverb. There are two yellow wires going to the board, when the switch is in el34 mode there is continuity between the two wires. Ampeg gu12 sch service manual download, schematics.
Sound clips page tube amp sound clips and tunes of all types. Service manuals, schematics, eproms for electrical technicians. The helmethead svt, v4, vt22, v2, vt40 and gu12 were completely new designs for ampeg at the time and very different in most respects from previous ampeg designs. Some tech placed a resistor across the little pcb board for the bias switch. These have the most dense and complex circuit designs, imo. Output transformer ot214 for ampeg b15nb12n product details.
A to e tube amp information, guitar amp schematics, tube. Gearcast factory authorized service free repair program payment options parts. Free shipping for your ampeg svtvr 300watt vintage. Tubes are all american except the 12ax7 which is a mullard. For more ampeg v4 information see the ampeg v4 pages. Hello i am a newb to this forum anyway i was curious if anyone had the schematic or link to the schematic for an ampeg b15 reissue. Ampeg owners guide bass amplifier b2, b2r 8 pages amplifier ampeg scrdi owners manual. I love ampegs but the reality is they dont bring big bucks like comparable fenders, marshalls or voxes. For additional information about ampeg amps see his website. In this case, the filament divider resistors are tied to the 50v bias see schematic. Index of supportfilesschematicsg seriesg12 gemini i. This service manual scan is as provided by ampeg, division of st. Its a great time to upgrade your home music studio gear with the largest selection at. Ampeg gu12 the exile on main street stones amp ventilator blues riffs.
Changed some resistors and coupling caps without any result. Troubleshooting musical instrument amplifiers this document appeared in the 1969 policy manual for ampeg authorized service centers. The legendary svt bass amp is the result of ampegs desire to create the, biggest, nastiest bass amplifier the world has ever. John 5 plays 7 unbelievably iconic guitars from hard rocks vault. I just found my favorite amp a couple of weeks ago, and it goes by the name, ampeg gu12. Free download ampeg schematic diagram ampeg electronic circuit schematics ampeg circuit schematics diagram, ampeg free schematics download results 31 60 of. I have been looking for a schematic for this amp for over a year and no one seems to have it. Ampeg v4 operating instructions manual pdf download. Bass di with scrambler overdrive 12 pages related products for ampeg v4. It sounds fantastic, super compact, and it can hold its own in a band setting with a drummer. There are a number of different versions of the j12, mine is a j12d, which uses the weird tubes. Gu12 schematics gv15 schematics gv22 schematics gvt5110 owner manual gvt5h owner manual.
Ej12 echojet et1 echotwin et2b super echotwin g series g12 gemini g15 gemini ii gs15r gemini iv gv22 gemini 22 j series j12a jet j12b jet j12d jet m series m12 6v6 mercury m12a 7591 mercury m15 mercury. Free shipping for your ampeg ba110v2 1x10 40watt bass. Its portable too, making it ideal for jamming and practicing anywhere. View and download ampeg sb12 operating instruction online. Rightclick to save the file or leftclick to open from your browser. Keep in mind, the gu12 is rare only because that model didnt sell and ampeg gave up on it after a couple of years. Ampeg 8651508 hf driver for b410hlf, pr410hlf, svt610. The ampeg svt3 pro plugin features tools that greatly add to its versatility when tracking bass. My advice is not to toss cash into it if youre not sure because youll never get it back out. Vt22v4 amp schematic 1974 magnavox vt40 amp schematic 1971 ampeg vt40 pre amp schematic 1971 joe piazza vt40 power amp schematic 1971 joe piazza also worth checking out is the blue muse unofficial ampeg page. This 1980s amp has two independent channels, reverb and chorus controls and a pair of 12, 70w speakers. Completely redesigned, ampegs allnew ba series bass combos deliver a huge range of classic ampeg tones in modern, performancedriven designs perfect for serious gigging and rehearsal. In the image above, youll see the schematic for the amp.
Complete tube set for your vintage ampeg ac12 and gu12. Ampeg amp schematics to assist you with your amplifier repairs and modifications. Developed by brainworx, the ampeg svtvr bass amplifier plugin offers an exacting emulation of the classic 300watt alltube behemoth and its equally legendary 8x10 cabinet for uad hardware and ua audio interfaces. Ampeg svtvr 300watt vintage reissue tube bass head. Service tips 1976 contains service tips for b100g100, sr6, v4vt22 with distortion, and 120w solid state power modules. If you want to join us and get repairing help please sign in or sign up by completing a simple electrical test or write your question to the message board without registration. Ampeg vacuum tube guitar amplifiers for sale in stock ebay. I guess this doesnt qualify as a departure from the original but its how i got rid of most of the ac hum, along with isolating the ground lines for the filter capacitors from the. Due to coronavirus covid19 we have limited staff working on location. Potted drop in output transformer ot214 for your ampeg b15n and b12n. If you ever have to replace an output transformer in a portaflex amp with pc board.
The image of your schematic diagram is faded in that part, but it looks like c24 and c25 are in series, so they. Design your own custom turret board or eyelet board. Turns out, it is based closely on the fender brownface era deluxe amp. Thats one way to deal with 60hz120hz hum from 6sl76sn7 tubes. Ampeg heaven amp schematics schematic amplifier echotwin. B15n, b18n,etc, cut the old wires close to the transformer base. It has two inputs high gain and low gain for a single clean channel. This site helps you to save the earth from electronic waste.
Ampeg pf350 sch service manual download, schematics. Luckily though, i got a smaller just as awesome sounding one. Svtvr 300watt vintage reissue tube bass head user manual. Stringed instrument documentsupright electronic bass bb4bb5 promotional and retail. Because of the quality of sound and if it aint broke, dont break it. Free ampeg schematic diagrams ampeg schematics free.
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