Potted drop in output transformer ot214 for your ampeg b15n and b12n. So with everything ive posted here, is there anyone who knows more about this amplifier that can give me something that can help me out. Ampeg a120 schematic 120 watt rms rack mount power amp. B12nb schematic b12nc schematics b12nf schematics b12nfjp schematics b12njp schematics. Output transformer ot214 for ampeg b15nb12n product details. Manual services, hifi manuals, diagrams, owners manuals, schematics, datasheets and brochures online for free download for your guitar amplifiers, mixers, effect processors, midi synthesizer, available on of the vintage hifi site. Your privacy is important to yamaha guitar group, inc. Combo amps free delivery possible on eligible purchases. The values weve chosen here are based on the closest approximation to what ampeg was looking for in its amps and we are confident these will not only. G 18 rev a g 18 rev b gt10 st22 st25 st42 sstsbt power amplifier. Classes g and h refer to railswitching topologies that are basically just special. Its a great time to upgrade your home music studio gear with the largest selection at. Just bought an ampeg reverbojet from 6871 and wanted to hear from other owners about their experiences. Prowess amplifiers offers resources for the guitar tube amplifier builder.
Ampeg g15 gemini ii tube amplifier v7591 schematic contents. Service tips 1976 contains service tips for b100g100, sr6, v4vt22 with distortion, and 120w solid state power modules. I have an ampeg g212 100 watt solid state guitar amplifier. View online or download ampeg g 212 operating instructions manual. Many of the above schematics are courtesy of joe piazzas backstage. The reverberation sound was pleasant and undistorted and had good tonal characteristics. We have a huge schematics inventory, projects section and forum. For additional information about ampeg amps see his website.
The ampeg g412 is described and pictured on page 176 of ampeg. Ampeg, manual services, hifi manuals, diagrams, owners. I will soon be getting the new ampeg v4b reissue and will need a new cab soon after. Ampeg b12n schematic 25 watt 112 guitar piggyback portaflex design. Following the direction of health authorities at centers for disease control cdc, public health agency of canada phac, and the world health organization who, we are providing our locally owned stores guidance on keeping customers and staff healthy and safe in response to covid19. Alltube amp 50w pentode 25w triode switchable on stand by. Just thought id chime in, i bought a gvt212 2x7080s really really heavy.
Has a 1x12 with 7591 power tubes, 6u10 preamp and 2x12 12ax7 preamps. Based on what ive seen of v2s, i wouldnt bet any two v4s are identical, either. Ampeg diagrams, schematics and service manuals download for free. View online or download ampeg g412 operating instructions manual. Ampegs gvt5h alltube guitar head delivers simple, sweet tone that ranges from the sublimely clean to the down and dirty. Schematics, specifications, troubleshooting guide fault diagnosis, calibration alignment instructions, voltage check points, tube layout chart, parts list. Clockwise rota tion results in more bass or treble, counter clockwise rotation results in less, r tremolo is amplitude volume modulation added to. Ampeg b12x schematic 25 watt 112 guitar piggyback portaflex design. Already known as the bible of tubes and tube amps, the tube amp book is now even better. G212 schematics g410 schematics g412 schematics gs12r schematics gs15r schematics. Its a solid state 4 x 12 sealed back combo guitar amp.
Ampeg g410 bassguitar combo amp circa 1974 24 august 2004 prepared by derek k. Based on the ampeg ba500, a high quality solidstate bass amp with a sonic. 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. View online or download ampeg g 412 operating instructions manual. Parts list, additional specifications, material, tolerances, etc click for. For more ampeg v4 information see the ampeg v4 pages. Thought the 212 would handle lows better then a 4x10. I tried adjusting a potentiometer that i had been told was for setting the bias, but it blew the amp. At midpoint 12 0clock the control is removed from operation. Originally an extremely loud, overweight 2x12 combo w the original squareback magnet speakers which died i yanked e.
The name ampeg makes bass players ears stand up and tails wag. Im assuming this is the schematic youre referencing. I think it messed up the power amp since the potentiometer was right before that stage. Z, fender, gibson, hiwatt, marshall, matchless, mesaboogie, orange, vox, watkins and many others. Ampeg r12r 212r 50h tube amplifier schematic diagram. Made in usa to original specs by our friends at heyboer. The tone and power of the gvt5h are much bigger than you might think, with 12ax7 6v6 tubes and two power modes 5w 2. Features a cdrom with 800 available schematic and layout diagrams, from ampeg to western electric, plus dramatically improved design and page layout. I have to say that after comparing these 3 amps in the same room and with the same fender american professional precision bass with flatwounds on it. Ampeg s gvt5h alltube guitar head delivers simple, sweet tone that ranges from the sublimely clean to the down and dirty.
The amp is a killer combo, much better than the soulless fender rumble and the overrated markbass cmd102p. Ampeg tube amp schematics, hoffman amps tube amp schematic library. Ampeg g212 120watt 2x12 solid state guitar combo reverb. Buy ampeg gvt series gvt52212 50watt 2channel 2x12 guitar combo amplifier. Buy ampeg gvt series gvt52 212 50watt 2channel 2x12 guitar combo amplifier. On the top panel of the chassis is a circuit diagram, which will save service. The year of manufacture was identified using info from ampeg archives and the cts pot date codes as follows. The ampeg 212 is a combination amplifier suitable for professional usage. Ampeg v4 schematic 100 watt guitar head ampeg v5 schematic 100 watt guitar head ampeg v6b schematic 240 watt head ampeg v6 speaker schematic 212 woofers, mid horn, tweeter ampeg v7 schematic 100 watt guitar head ampeg v9 schematic 300 watt guitar head ampeg v9 service manual ampeg v50h schematic super jet sj12r 50 watt 1x12 guitar combo. G18 rev a g18 rev b gt10 st22 st25 st42 sstsbt power amplifier. Hi, i just got one of the ampeg gt10, reverb tank is hosed. The books technical tips, indepth electronic specs and explanations, over 350 schematic diagrams, and fullcolor plates make it a musthave for the legions of tubetone fanatics.
Trem rehoused as a head this amp is in excellent condition for its age and was my backup amp for the last 10 years. Parts list, additional specifications, material, tolerances, etc click for large view. Find great deals on ebay for ampeg 212 and ampeg 210. Amps and tagged ampeg clone, ampeg fliptop, ampeg fliptop clone, ampeg portaflex, b15n, b15n clone, d. Line 6 is a music instruments manufacturing company that specializes in guitar amp and effects modeling, and makes guitars, amps, effects pedals, multi effects processors, guitar wireless, vocal wireless, music software, recording interfaces, digital mixers, and personal amplification speakers. Its from a series of amps that all used the same 120 watt power amp with varying preamps and cabinets according to the particular model. Even with my limited experience with ampegs, ive seen enough variations to make me somewhat hesitant to speculate as to how any given pair of ampeg ampstransformerscircuits might compare. It is a 100 watts solid state amp with two channels, both clean, one with reverb and tremolo. V6b tone controls cur boost all ampeg am plifiers have both boost and cut tone control circuits.
This schematic is from a vt22 which is just a combo version of a v4 click for large view. 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. Schematics, product picture illustration, test procedures, troubleshooting guide fault diagnosis, calibration alignment instructions, assembly disassembly guide, pc board layout, semiconductor generic reference numbers, service bulletins engineering changes modifications dated 1973. Ampeg g 18 input question just picked up a 1977 ampeg g 18 with a blown filter cap 120hz hum after the solid state rectifier for 40 bucks. If you perform a software update, including but not limited to a firmware update, to a ygg affiliated product, then ygg will collect personal information from you, such as your ip address and unique product id so that we can ensure proper functionality of the product and that the product is. The software model was so accurate that it even replicated this design flaw. For greater savings check out our used ampeg g18 guitar combo amp and get a great deal today. Ampeg heaven amp schematics schematic amplifier echotwin. B15n, b18n,etc, cut the old wires close to the transformer base. Ampeg amp schematics to assist you with your amplifier repairs and modifications. Ampeg enthusiasts 6871 ampeg reverbojet owners the. On subjective tests with a guitar, the amplifier exceeded our expectations and gave a very good sound, controlled by extremely effective tone controls. Just picked up a 1977 ampeg g18 with a blown filter cap 120hz hum after the solid state rectifier for 40 bucks.
View online or download ampeg g212 operating instructions manual. Ampeg gvt series gvt5h 5watt guitar amplifier head. Top mount controls not the vu meter version cosmetically looks like the v4 series vt40, etc. Was wondering if one of you could give me the part number off the reverb tank.
The amp sat in a cellar bottom of the case and reverb rotted out, but speaker and chassis are intact. Service memostroubleshooting musical instrument amplifiers this document appeared in the 1969 policy manual for ampeg authorized service centers. I figure ill replace the cap then have a nice early solid state amp. I have an ampeg g212 100 watt solid state guitar amplifier that does not turn on anymore.
The new ampeg svt series cabinets are the perfect partner to the classic series bass amp heads. Free electronics schematic diagrams downloads, electronics cad software, electronics circuit and wiring diagrams, guitar wiring diagrams, tube amplifier schematics, electronics repair manuals, amplifier layout diagrams,pcb software for making printed circuit boards, amplifier design software cad for drawing circuit diagrams free download. G 12 amp schematic joe piazza g 15 amp schematic joe piazza gs15r. 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. If you ever have to replace an output transformer in a portaflex amp with pc board. 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. Aug 18, 20 just thought id chime in, i bought a gvt212 2x7080s really really heavy.