Catch but a glimpse of an ampeg combo like this 1966 gemini ii g15 and. Ampeg produced a few of these with 6l6s and these are even more powerful. Each cover is made specifically for the amp listed and has properly positioned handle openings. Vintage 1967 ampeg gemini ii g15 1x15 tube guitar combo amp for your. Mar 26, 2015 caps and transformers date this old ampeg to 1968. Stringed instrument documentsupright electronic bass bb4bb5 promotional and retail.
Ampeg gemini series amps are well regarded by jazz guitarists for their rich, clean sound. Skip to main content skip to footer site5111612895 vintage 111612895 ampeg gemini 1 model g12 tube guitar combo amp guitar center. Metal caster for ampeg svt810av and svt410hlf bass guitar amplifiers. Free download ampeg schematic diagram ampeg electronic circuit schematics ampeg circuit schematics diagram, ampeg free schematics download.
I also had a 67 gemini i several years ago which i sold and regretted. Ampeg heaven amp schematics schematic amplifier echotwin. This particular gemini i is an example that has a deeper cabinet than most geminis. Troubleshooting musical instrument amplifiers this document appeared in the 1969 policy manual for ampeg authorized service centers. Ampeg v4bh 100 watt tube bass head musicians friend. Comparing them both they are very different sounding. I owned a gemini ii back in the 60s and wanted to try to capture that warm. After downloading, the file may take a moment to open in the browser. We have the ampeg 1966 gemini ii tube guitar combo amp in stock in our vintage collection.
I currently have a hot rod deluxe and i would kinda like something with a bit lower power and from what ive heard when i tried it, i was pretty impressed with the gemini, both on clean and slightly dirty settings. Electrolytic filter capacitor kit for ampeg gemini two, g15 power supplies. Vintage ampeg 1966 gemini ii tube guitar combo amp. For more ampeg v4 information see the ampeg v4 pages. Ampeg b12x schematic 25 watt 112 guitar piggyback portaflex design. Free download ampeg amplifier model geminigv22 schematic diagram electronic schematic circuit diagram, download ampeg amplifier model geminigv22 schematic diagram electronics wiring diagram, free schematic, free schematics. Ampeg gemini i ground wire question telecaster guitar forum. Ampeg g12, gemini i, tube guitar accordion amp, spring reverb, tremolo, equalizer, vintage unit, for repair.
I purchased it for use during a summer trip where space and weight would be an issue. Interestingly, the schematic calls for a 1 meg treble pot, but there is a 1. Shop now and receve free shipping on your order today. Ampeg gemini i ground wire question discussion in amp central station started by jrdamien, sep 9, 2010. But also it always makes me cringe when i see people rolling amps down the sidewalk so im actually not a fan of them. Rrs usually use 7591 power tubes and are cathode biased. In v4 its r53 470 ohm 7w and v2 has r55 1k 10w higher resistance and higher power rating in v2 because since it has 2 power. Gemini iis and higher switch to fixed bias and are therefore a bit more powerful probably get up near 2225 watts. Ampeg g15 gemini 2 amp schematic ampeg gs12 reverbrocket 2 amp schematic ampeg gs15r gemini iv amp schematic ampeg gv22 gemini 22 amp schematic.
Ggjaguars guitarium and ampeteria 1966 ampeg gemini ii. It was running on ge power tubes and some amperex 12ax7s. 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. Nice original circuit with strong output and beautiful tone but a little. When you buy products through links across our site, we may earn an affiliate commission.
Due to coronavirus covid19 we have limited staff working on location. Ampeg gemini ii model g15 30watt 1x15 guitar combo reverb. The best modern replacement for the cts 15 speaker that was in the b15 is an eminence delta 15a. 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. Not sure if these tubes are original but they are from the 70s at least. Index of supportfilesschematicsg seriesg12 gemini i ampeg. Catch but a glimpse of an ampeg combo like this 1966 gemini ii g15 and youre thinking jazz club. Many of the above schematics are courtesy of joe piazzas backstage. I own a lot of vintage fender combos and i just love the fender blackfaceearly silverface reverb sound. The amp featured 22 watts of power and was originally intended as an amplifier for accordion players. Interesting that r73 should be damaged because thats the same resistor in ampeg v series that sometimes has trouble. Electrolytic capacitor kit for ampeg gemini two power supplies. 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. We have set up a separate members only forum area to discuss everything related to the coronavirus.
I picked up this amp back in april with the intentions of building an ampeg gemini ii. Many of these amps sound killer cranked with a guitar. I loved it, it had the most beautiful deep reverb, and the bass response was lovely. Ampeg amp schematics to assist you with your amplifier repairs and modifications. 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. Everything i think is original including jensen speaker and all the tubes. Ampeg b12n schematic 25 watt 112 guitar piggyback portaflex design. If you want a real b15 double baffle cabinet, check out vintage blue. Tube set for ampeg g12 gemini i, g15 gemini ii product details. Feb 23, 2019 hello everyone, i just now joined this evening after doing some googling and it appears there really isnt any vintage ampeg forum anymore. I admit ive lost my mind again, but i just could not resist this beauty. Gemini 1 model g12 tube guitar combo amp guitar center. The gemini i was a 1x12 guitar combo produced by ampeg in the early 1960s.
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. Ggjaguars guitarium and ampeteria 1965 ampeg gemini i. Discussion in amps and cabs started by the dirty tube, nov, 2012. This is not surprising since ampeg founder, everett hull, was a jazz bassist that aimed his amplifiers squarely at jazz guitarists, bassists, and accordionists. Complete tube set for your ampeg gemini i g12 and gemini ii g15 includes. Two inputs per channel, reverb and tremolo, 3 x 12ax7, 1 x 7199, 1 x 6cg7 tubes. This reverb circuit can go from subtle to over the top dick dale. By serial number for 1966 which is between 20,000 and 40,000 my amp is in the 35k range. There are hundreds of pages of tube amp information on my library page. The vi has a 15 inch speaker, which is a big sell for me.
The gemini i remained in the ampeg line until 1972. 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. This is a 2 channel amp without switching so i am using an aby box to switch between and blend both channels. I inspected the solder joints very closely and it looks original. Sale does not include the cabinet or any other accessory. The g15 gemini ii was the 15inch version of the popular 12inch g12 gemini i. Rack ear kit for ampeg svt7pro watt tube preamp bass head. The original ampeg bassman amp was an open back like the gemini. Tube set for ampeg g12 gemini i, g15 gemini ii product. Ive played much bigger amps who hasnt and ive played better amps who hasnt. Ampeg diagrams, schematics and service manuals download for free. Free ampeg schematic diagrams ampeg schematics free.
In terms of the electronics, the amp sounds pretty good when it is up to spec. This is a quality heavy duty vinyl protective cover for an ampeg gemini 1 g12 guitar amplifier. 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. I want to install a 3 prong to it and remove the death cap.
Service tips 1976 contains service tips for b100g100, sr6, v4vt22 with distortion, and 120w solid state power modules. Rightclick to save the file or leftclick to open from your browser. The gemini 1s are every bit as good as my fenders and sacrilege i would say perhaps even better. Ampeg gs15r gemini iv amp schematic ampeg gv22 gemini 22 amp. I bought the ampeg gemini 1 from gc in austin tx in june of 2009. Before the reverb went out, pin 1s voltage would bound from 170v to 250v slower if you turn the rate knob of the vibrato, and faster if you turned it up. Although specializing in the production of bass amplifiers, ampeg has previously manufactured guitar amplifiers. Ampeg gemini i model g12 22watt 1x12 guitar combo reverb. Ampeg gemini 1s are one of the best smaller combos around.
The ampeg v4bh 100 watt tube bass head is similar to the svt, just smaller in output 100w. Im not 100% sure yet but believe i liked the od tones of the gemini i better. Ampeg g12, gemini i, tube guitar amp, spring reverb, tremolo. 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. With almost 10 more watts of output and a 15 inch speaker it represented a more powerful alternative to the gemini i. For additional information about ampeg amps see his website.
Ampeg g12, gemini i, tube guitar amp, spring reverb. 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. Skip to main content skip to footer site5111612895 vintage 111612895 ampeg gemini 1 model g12 tube guitar combo amp. J20 jet current production clone of fender 6g3 brown deluxe hand wired. Dec 29, 2014 this is a 2 channel amp without switching so i am using an aby box to switch between and blend both channels. Ampeg mad a number of this style amp, all with open backs and either a 12 or 15 with vibrato or reverb. Prowess amplifiers ampeg schematics gs15r gemini iv. Click the link above for tube amp info, schematics, board building information, projects, mods, transformer diagrams, photos, sound clips. All content on this page is 19972020 duncan amplification. Like its smaller sibling, the gemini ii is a two channel amp with separate bass and treble controls and. In addition, the gemini i featured an alltube design and onboard reverb and tremolo. The speaker is not original, it is a newer jensen c15n. Et 1 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.
I wonder if people with good ones ever checked them against the schematic and visa versa. Ampeg gemini ii g15 discussion in amp central station started by artie fisk, oct 16, 20. There are several versions of the gemini 1 gemini 12 schematic floating around and i couldnt say for sure whether theres a model with fixed bias or not but if its built like the linked schematic, there is no separate bias supply to adjust or piddle with the bias is set by the cathode resistor. Mar 10, 2017 i wonder if people with good ones ever checked them against the schematic and visa versa now the jensen concert 15 in my gemini is a 1966, 21st week. Ampeg gemini vi 115 combo amp works sounds great needs service for safe operation. Weak driver and recovery preamp tubes, in ampeg type. Ampeg a120 schematic 120 watt rms rack mount power amp. Vintage 1966 ampeg gemini ii guitar 15 combo amp quick. We have the gemini 1 model g12 tube guitar combo amp in stock in our collection. There are many more schematics and documents being scanned and uploaded. Been using an ampeg gemini vi as my main amp for about a year or two, and have grown quite attached. Index of supportfilesschematicsg seriesg12 gemini i. Discussion in other amps started by rmlevasseur, jun 27, 20.
Hello everyone, i just now joined this evening after doing some googling and it appears there really isnt any vintage ampeg forum anymore. They are not bass amps open back being a big reason. It uses the same tubes in the preamp and drive sections 2 12ax7 in the preamp, a 12au7 and 12ax7 for drive. Audio output transformer for ampeg svtcl classic bass head. In a good portion of vintage ampeg amps such as the gemini i, the power tubes are cathode biased and are self biasing. Discussion in amps started by jimytheassassin, mar 10, 2017. Although specializing in the production of bass amplifiers, ampeg has previously manufactured guitar amplifiers and pickups and instruments including double basses. Like that of so many other ampegs, the circuit of this one looks little or nothing like. But the gemini 1 is a marvelous and a very serious instrument that completely dominates in its own musical niche. Rated around forty watts, is a great size for small clubs. I used to own a gemini i i think the same amp, except with a 12. I was actually looking for another gemini i when this retolexed ii popped up. Ampeg is a manufacturer best known for its bass amplifiers. Rocket series reverb rocket 2 reverb rocket 3 reverb rocket 12r reverb rocket 12rb reverb rocket 12rt rocket no reverb 12a super.
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