Although specializing in the production of bass amplifiers, ampeg has previously manufactured guitar amplifiers and pickups and instruments including double basses. Home forums amplifier discussion forums amp central station 60s ampeg jet ii amps. Ampeg diagrams, schematics and service manuals download for free. Ampeg heaven amp schematics schematic amplifier echotwin. I cannot find anything on the schematic as to what this component was. So right now im facing a unique and awesome opportunity that id like to get some additional insight into from all you amp wizs. Each cover is made specifically for the amp listed and has properly positioned handle openings. Ampeg gs15r gemini iv amp schematic ampeg gv22 gemini 22 amp. This is a 2 channel amp without switching so i am using an aby box to switch between and blend both channels. The ampeg v4bh 100 watt tube bass head is similar to the svt, just smaller in output 100w. Capacitor kits fliptops home of parts for ampeg lovers. Prowess amplifiers offers resources for the guitar tube amplifier builder.
Index of supportfilesschematicsg seriesgs15r gemini vi. A 2year, nontransferable warranty on electronics and a 2year, nontransferable warranty on speakers apply to all b series, all diamond blue, and all ba combo amps. Ampeg is a manufacturer best known for its bass amplifiers. Complete tube set for your ampeg gemini i g12 and gemini ii g15 includes. 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. Originally established in 1946 in linden, new jersey by everitt hull and stanley michaels as michaelshull electronic labs, today ampeg is part of the yamaha guitar group.
Gs12r reverb rocket 2 gs15r gemini vi gsc12r gt10 gu12 gv15, 22 gemini gvt dual footswitch chbst gvt dual footswitch. Ampeg amp schematics to assist you with your amplifier repairs and modifications. The g15 gemini ii was the 15inch version of the popular 12inch g12 gemini i. Hoffman amplifiers tube amp forum, pc express and jschem schematics and layout diagrams. Stringed instrument documentsupright electronic bass bb4bb5 promotional and retail. Ampeg pf350 sch service manual download, schematics. Ampeg gemini vi 25w guitar amp replacement hammond mfg. The gemini i delivered 30 watts of tube power compared to the 22 watts of the gemini i. Cant find any anywhere, and dont really want to use anything else.
For additional information about ampeg amps see his website. 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. In a good portion of vintage ampeg amps such as the gemini i, the power tubes are. The amp featured 22 watts of power and was originally intended as an amplifier for accordion players. For more ampeg v4 information see the ampeg v4 pages. Ampeg gemini ii g15 discussion in amp central station started by artie fisk, oct 16, 20. At this time ampeg does not display schematics online. Ampeg v4bh 100 watt tube bass head musicians friend.
Ampeg produced a few of these with 6l6s and these are even more powerful. Ampeg gemini ii model g15 30watt 1x15 guitar combo amplifier with footswitch. Nice original circuit with strong output and beautiful tone but a little. I bought the ampeg gemini 1 from gc in austin tx in june of 2009. A 5year, nontransferable warranty on electronics and a 2year, nontransferable warranty on speakers apply to all svt classic and pro series, mi amps and cabinets. The gemini i was a 1x12 guitar combo produced by ampeg in the early 1960s. Service tips 1976 contains service tips for b100g100, sr6, v4vt22 with distortion, and 120w solid state power modules. However, if you wish to obtain a physical copy of product schematics, please contact the loud technologies inc. To bypass that, you would need 2 50 ohm or 100ohm resistors, or the other schematic shows right to ground. Catch but a glimpse of an ampeg combo like this 1966 gemini ii g15 and youre thinking jazz club.
Electrolytic filter capacitor kit for ampeg gemini two, g15 power supplies. Ive played much bigger amps who hasnt and ive played better amps who hasnt. Tube set for ampeg g12 gemini i, g15 gemini ii product. Ampeg j20 jet blue diamond amp handwired fender brown face deluxe 6g3 circuit. Ampeg svt6 pro schematics repairs and technical basschat. Ive got this ampeg gemini ii g12 tube combo amp that ive been slaving over for the last couple of weeks and im hoping someone here could help me with it. Not sure if these tubes are original but they are from the 70s at least. Basically, this amp only had one working channel, no reverb pan got cut out by previuos owner and, it had a pretty bad hum. 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. Rrs usually use 7591 power tubes and are cathode biased. Ampeg gemini series amps are well regarded by jazz guitarists for their rich, clean sound. We have the ampeg 1966 gemini ii tube guitar combo amp in stock in our vintage collection.
In addition, the gemini i featured an alltube design and onboard reverb and tremolo. Metal caster for ampeg svt810av and svt410hlf bass guitar amplifiers. Many of the above schematics are courtesy of joe piazzas backstage. This is not surprising since ampeg founder, everett hull, was a jazz bassist that aimed his amplifiers squarely at jazz guitarists, bassists, and accordionists. Hey guys, i have an ampeg gemini that sounds amazing and punchy in the room but when i put a mic on it, the sound is dull.
The unofficial ampeg page under schematics, gemini vi. It uses the same tubes in the preamp and drive sections 2 12ax7 in the preamp, a 12au7 and 12ax7 for drive. Ggjaguars guitarium and ampeteria 1966 ampeg gemini ii. Get the guaranteed best price on tube combo guitar amplifiers like the ampeg sj12t super jet at musicians friend. Like its smaller sibling, the gemini ii is a two channel amp with separate bass and treble controls and. Stringed instrument documentsupright electronic bass bb4bb5 promotional and retail materials. Gemini iis and higher switch to fixed bias and are therefore a bit more powerful probably get up near 2225 watts. Electrolytic capacitor kit for ampeg gemini two power supplies. Troubleshooting musical instrument amplifiers this document appeared in the 1969 policy manual for ampeg authorized service centers. It was quiet no loud hum but i didnt have time to plug in a guitar. It first started when i accidentally accidentally because i didnt know what i was buying, just thought it was a 60s b 15 that had been modified bought a 1st generation b 15 build date june 1960 with the wooden side panels on the head and the additional removable port covers inside the cabinet. For additional information, see the global shipping program terms and. Ampeg j20 jet blue diamond amp hand wired fender brown face deluxe 6g3 circuit.
Rack ear kit for ampeg svt7pro watt tube preamp bass head. But also it always makes me cringe when i see people rolling amps down the sidewalk so im actually not a fan of them. I purchased it for use during a summer trip where space and weight would be an issue. Free ampeg diagrams, schematics, service manuals schematics. This is a quality heavy duty vinyl protective cover for an ampeg gemini 1 g12 guitar amplifier. Get a low price and free shipping on thousands of items. Weak driver and recovery preamp tubes, in ampeg type c systems this is usually the 6cg7. Vintage ampeg 1966 gemini ii tube guitar combo amp. With almost 10 more watts of output and a 15 inch speaker it represented a more powerful alternative to the gemini i. When you buy products through links across our site, we may earn an affiliate commission. Audio output transformer for ampeg svtcl classic bass head. I also notice that several of you posted about a 1966 gemini ii and certainly possess way more knowledge than i do, so im hoping someone can steer me in the right direction.
Ampeg s schematics from this era arent exactly super accurate. Hello everyone, i just now joined this evening after doing some googling and it appears there really isnt any vintage ampeg forum anymore. Discussion in amps started by jimytheassassin, mar 10. As for the phaseinverter circuit, ampeg used a rendition of the splitphase a.
Ampeg gemini vi 115 combo amp works sounds great needs service for safe operation. Long story short, a friend is going to let me keep either his ampeg gemini i with the navy checkers as opposed to black tolex, which i believe is the earlier one or his invicta amps 57 deluxe pointtopoint boutique replica. Ampeg gemini i model g12 22watt 1x12 guitar combo reverb. Vintage 1966 ampeg gemini ii guitar 15 combo amp quick.
Ampeg gemini vi model gs15r 30watt 1x15 guitar combo. Pc express and jschem schematics and layout diagrams. So its a big hard for someone like me to figure out. Ampegs schematics from this era arent exactly super accurate. While the 15inch speaker worked well for bass and guitar, this amp was actually originally targeted towards accordion players. But the gemini 1 is a marvelous and a very serious instrument that completely dominates in its own musical niche.
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