Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: BlackCrowe604 on October 09, 2024, 03:31:13 pm

Title: 1970's Ampeg GV-22 Transformer Specs
Post by: BlackCrowe604 on October 09, 2024, 03:31:13 pm

Hey everyone!
Came across an old Ampeg Gemini GV-22.

The original OPT is toast. I'm wondering if anyone might know what the original specs for these transformers were? (primary impedance).

Hoping to find an equivalent that is less expensive than at fliptops/mercury.

Thanks all!

Title: Re: 1970's Ampeg GV-22 Transformer Specs
Post by: Dave on October 09, 2024, 03:53:09 pm

I don't know the exact specs, but looks like it claims to be a 40 watt amp using a pair of 6L6's fixed bias at around 480 plate volts.
Something like an 8 ohm Super Reverb or Bassman type replacement would work fine.
Around 3500 ohms or somewhere in the neighborhood.

Correction - it looks like it has 8 and 16 ohm taps.

Dave

Title: Re: 1970's Ampeg GV-22 Transformer Specs
Post by: Latole on October 10, 2024, 01:28:43 am

You need 16 ohms and 8 .
This Hammond 1760 L will work , check for measurments

Title: Re: 1970's Ampeg GV-22 Transformer Specs
Post by: Latole on October 10, 2024, 01:33:13 am

Canadian money ;