Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Misc Schematics and Layouts => Topic started by: plexi50 on October 07, 2008, 05:10:01 pm

Title: Gibson GA 25 RVT Hawk Schematic W/ 7591 Tubes
Post by: plexi50 on October 07, 2008, 05:10:01 pm

Here is a new schematic i found for the Gibson GA 25RVT Hawk using 7591 power tubes instead of 6V6 tubes
(http://i356.photobucket.com/albums/oo5/plexijtm45/ga25rvt.gif)

Title: Re: Gibson GA 25 RVT Hawk Schematic W/ 7591 Tubes
Post by: davohilts on February 03, 2012, 03:53:29 pm

I just picked up a partial amp off of ebay which is the same as you schematic. Do you still have it? Do you like it?
Thanks,
Dave

Title: Re: Gibson GA 25 RVT Hawk Schematic W/ 7591 Tubes
Post by: dkevin on February 04, 2012, 09:30:45 am

 Congrats on your find! I also found one in need of repair, on the east coast. It just needed some resistors replaced and caps updated to come to life. It sounds good! I also have the earlier 6V6 version of the same amp to side-by-side compare. The 7591 amp is stiffer and more responsive due to the diodes in the PS. Love them both! Thanks to plexi50 for posting the schematic!