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