Make room for new gear in minutes. The G-15 Gemini II was the 15-inch version of the popular 12-inch G-12 Gemini I. While the 15-inch speaker worked well for bass and guitar, this amp was actually originally targeted towards accordion players. The Gemini I delivered 30 watts of tube power compared to the 22 watts of the Gemini I.

1966 Ampeg Gemini II G-15. Amp and photos courtesy of Greg Mayo. Preamp tubes: three 12AX7, one 6CG7, one 7199. Output tubes: two 7868. Rectifier: solidstate. Controls: volume, treble and bass on each channel; echo (reverb) and speed and intensity (tremolo) on channel two. Speaker: 15″ Jensen Concert. Output: approximately 30 watts RMS.

The Ampeg Gemini II is a highly regarded, versatile amp. The amp has original transformers, handle, and 15" Jensen Concert speaker. The multi-cap can has been replaced as the original was out of spec (not shown in photo).

2009年2月25日 · For the hi voltage rects I've found UF4007 to be plenty sufficient (1 amp rated) but if you want to go ahead with 3 amp rated '5408's. Recently I had to repair a Gem II where someone had already replaced the PT, and the new - secondhand - one was also defective.

The G-15 Gemini II was the 15-inch version of the popular 12-inch G-12 Gemini I. While the 15-inch speaker worked well for bass and guitar, this amp was actually originally targeted towards accordion players. The Gemini I delivered 30 watts of tube power compared to the 22 watts of the Gemini I. The original amp came with a two button foot-switch.

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. It is well suited for warm, clean jazz tones and works best with humbucking pickups.

2014年1月24日 · The big guy the Gemini II with its 15” driver is fixed bias and uses 7591a output tubes as does the smaller model. The Gemini I with it’s 12” driver is cathode biased with smaller transformers, although both amps have the same preamp sections.

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. It is well suited for warm, clean jazz tones and works best with humbucking pickups. The Gemini II remained in Ampeg’s catalog until 1968 when it was superseded by the GV-15 Gemini 15.

This vintage Ampeg Gemini II G-15 amplifier from 1966 features a replaced 15" speaker, offering rich, classic Ampeg tone with an updated twist. A fantastic choice for players seeking vintage sound with modern reliability.

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