I know working with old amps can be extremely dangerous if wired incorrectly, so i was hoping someone could help me verify im doing this correctly so i dont electrocute myself. Your purchases help youth music programs get the gear they need to make music. Ampeg diagrams, schematics and service manuals download for free. Have a gemini i and several of the other similar ones reverborocket ii, rocket, gemini vi. Et2b schematics g12 schematics g15 gemini ii schematics g20 schematics g100 schematics g110 schematics g212 schematics. Ampeg b12n schematic 25 watt 112 guitar piggyback portaflex design. Ggjaguars guitarium and ampeteria 1966 ampeg gemini ii. We have one of these at the studio where im currently working and it doesnt see as much use as it should. For more ampeg v4 information see the ampeg v4 pages. You can write in english language into the forum not only in. 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. After downloading, the file may take a moment to open in the browser. Gemini 1 model g12 tube guitar combo amp guitar center. Theyre all excellent amps but the gemini is a killer amp imho.
However, to do so id need to sell my ampeg gemini ii amp. Vintage ampeg 1966 gemini ii tube guitar combo amp. If you want a real b15 double baffle cabinet, check out vintage blue. Schematics, specifications, troubleshooting guide fault diagnosis, calibration alignment instructions, voltage check points, tube layout chart, parts list. This is the second reincarnation it has gone through. 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. Ampeg b12x schematic 25 watt 112 guitar piggyback portaflex. Bogen chb20a conversion with ampeg gemini ii preamp schematic. In terms of the electronics, the amp sounds pretty good when it is up to spec. Ampeg gemini ii 2 to 3 prong conversion questions i just picked up a pretty sweet ampeg gemini ii from craigslist and am converting it from a 2 to 3 prong power cable. Ive been drooling over the ampeg gemini series for some time now but havent pulled the trigger on any because of their apparent size.
While the 15inch speaker worked well for bass and guitar, this amp was actually originally targeted towards accordion players. B12n schematics b12nb schematic b12nc schematics b12nf schematics b12nfjp schematics. I owned a gemini ii back in the 60s and wanted to try to capture that warm, clean sound again. However, when it does it brings a smile to the face of the user. Hello everyone, i just now joined this evening after doing some googling and it appears there really isnt any vintage ampeg forum anymore. Pc express and jschem schematics and layout diagrams. Ampeg g15 gemini 2 amp schematic ampeg gs12 reverbrocket 2 amp schematic. Ampeg tube amp schematics, hoffman amps tube amp schematic library. I dropped the reverb power amp circuit and routed the wet signal from the. Your purchases also help protect forests, including. Ampeg a120 schematic 120 watt rms rack mount power amp. I notice that there is a piece of wood i believe that runs in front of the speaker.
This is a 2 channel amp without switching so i am using an aby box to switch between and blend both channels. Like its smaller sibling, the gemini ii is a two channel amp with separate bass and treble controls and the added ultra high and repeat percussion effects. I dont know what years this amp was made, but they seem to be pretty rare. The gemini i delivered 30 watts of tube power compared to the 22 watts of the gemini i. I have an old ampeg gemini ii g15 that i was given to restore. The original ampeg bassman amp was an open back like the gemini. In a good portion of vintage ampeg amps such as the gemini i, the power tubes are.
Ampeg is a manufacturer best known for its bass amplifiers. This is probably a longshot, but i was wondering if anyone here has a schematic for the speakeasy vintage tube leslie preamp. The ampeg gemini ii is an electric guitar combination amplifier consisting of two separate channels. We have the ampeg 1966 gemini ii tube guitar combo amp in stock in our vintage collection. But also it always makes me cringe when i see people rolling amps down the sidewalk so im actually not a fan of them. Although specializing in the production of bass amplifiers, ampeg has previously manufactured guitar amplifiers and pickups and instruments. Ampeg gemini ii model g15 30watt 1x15 guitar combo reverb. It was a fine amp, but i felt it wasnt powerful enough to justify its bulk. I also rewired the original 6eu6 preamp tube socket to use a 12ax7.
I love my ampeg gemini gv22 telecaster guitar forum. This is indeed a tube amplifier, consisting of a single speaker and two sets of. It has a great low end presence, which i guess is a byproduct of the fact that ampeg mostly makes bass amps. Ampeg amp schematics to assist you with your amplifier repairs and modifications. The unofficial ampeg page under schematics, gemini vi. The website has a few documents listed, and theres a schematics section, but theres only two documents and neither one of them is it. Those old style resistors are some sort of metal film, probably all within tolerance. 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. 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. Page 2 of 2 ampeg page under schematics, gemini vi. I believe that ampeg made them for accordions, fwiw.
Troubleshooting musical instrument amplifiers this document appeared in the 1969 policy manual for ampeg authorized service centers. 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. Ampeg heaven amp schematics schematic amplifier echotwin. Prowess amplifiers offers resources for the guitar tube amplifier builder. Complete tube set for your ampeg gemini i g12 and gemini ii g15 includes. This is a quality heavy duty vinyl protective cover for an ampeg gemini 1 g12 guitar amplifier. Stringed instrument documentsupright electronic bass bb4bb5 promotional and retail. Not sure if these tubes are original but they are from the 70s at least. The best modern replacement for the cts 15 speaker that was in the b15 is an eminence delta 15a. Due to coronavirus covid19 we have limited staff working on location.
It was running on ge power tubes and some amperex 12ax7s. The main mods is the ampeg gemini ii preampmaster volume, i added a standby switch, input and speaker jack. Basically, this amp only had one working channel, no reverb pan got cut out by. 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. Free electronic schematic diagrams, electronics cad software, electronic pcb software, guitar wiring diagrams, amp schematics, repair manuals, amplifier layout diagrams,pcb software for making printed circuit boards, amplifier design software cad for drawing circuit diagrams. Looking for a schematic for an ampeg gemini ii the gear page. The g15 gemini ii was the 15inch version of the popular 12inch g12 gemini i. We have the gemini 1 model g12 tube guitar combo amp in stock in our collection. The original amp came with a two button footswitch. I did have a 65 gemini ii, but sold it for one of the reasons you mentioned big and heavy. One is a 1967 gemini ii blue diamond tolex, 15 speaker and a 1969 gemini i black fenderesque tolex, 12 speaker.
Skip to main content skip to footer site5111612895 vintage 111612895 ampeg gemini 1 model g12 tube guitar combo amp. The gemini ii and vi look particularly huge, in some of the youtube videos ive seen appearing to. Electrolytic filter capacitor kit for ampeg gemini v, g15v power supplies. Both are a 1x12 combo, and though the ampeg is a bit bigger they weigh about the same.
This amp was given to me by my bass player when he went to a ham fest and picked it up. Ampeg g15 gemini 2 amp schematic ampeg gs12 reverbrocket 2 amp schematic ampeg gs15r gemini iv amp schematic ampeg gv22 gemini 22 amp schematic. The gemini i delivered 30 watts of tube power compared to. 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. Ampeg g15 gemini ii 1x15 1965 black price guide reverb. Welcome to the hoffman amplifiers forum el34 world. With almost 10 more watts of output and a 15 inch speaker it represented a more powerful alternative to the gemini i. Its a good little amp but not widely used with our kind of music. I looked around the internet, and on ampeg s website, but all the prints i was able to locate were different variations of the circuit that i have. Vintage 1966 ampeg gemini ii guitar 15 combo amp quick. The speaker is not original, it is a newer jensen c15n.
Rightclick to save the file or leftclick to open from your browser. Each cover is made specifically for the amp listed and has properly positioned handle openings. Ampeg g15 gemini ii tube amplifier v7591 schematic contents. Discussion in other amps started by rmlevasseur, jun 27, 20. As for the phaseinverter circuit, ampeg used a rendition of the splitphase a. We have a huge schematics inventory, projects section and forum. Bogen chb20a converted to ampeg gemini ii preamp squier. Tube set for ampeg g12 gemini i, g15 gemini ii product. The ampeg gemini ii is a really great sounding guitar amplifier. Rocket series reverb rocket 2 reverb rocket 3 reverb rocket 12r reverb rocket 12rb reverb rocket 12rt rocket no reverb 12a super reverb 15r sb series sb12p portaflex sb12. Top 10 things you should never do with your vintage tube amp. Ampeg amp schematics to assist you with your amplifier repairs and. Service tips 1976 contains service tips for b100g100, sr6, v4vt22 with distortion, and 120w solid state power modules. Catch but a glimpse of an ampeg combo like this 1966 gemini ii g15 and youre thinking jazz club.
Tech specs, detailed installation guides, new software updates, and current information on. The 1969 is the first year of the 70s style of ampegs. The schematic that was inside the amp was partially damaged, so im only able to see about 23 of the circuit. I love my ampeg gemini gv22 discussion in amp central station started by thebob, mar 12, 2008. Ampeg gemini ii g15 discussion in amp central station started by artie fisk, oct 16, 20. Weak driver and recovery preamp tubes, in ampeg type c systems this is usually the 6cg7 tube and a 12ax7. I see a 15k pot on the schematic but i think it was replaced at one time. Hoffman amplifiers tube amp forum, pc express and jschem schematics and layout diagrams. Discussion in amps started by jimytheassassin, mar 10, 2017.