Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: imgumby001 on October 20, 2022, 12:42:09 pm

Title: Low Watt High Gain Project Question
Post by: imgumby001 on October 20, 2022, 12:42:09 pm

Hi all!! I have a small enclosure that I want to use for a low watt(3-5) high gain project. I’m wondering if I can take a high gain preamp like the one attached and graft it onto a power amp section like the one in a champ(or any SE power section regardless of specific tube.)?

Title: Re: Low Watt High Gain Project Question
Post by: sluckey on October 20, 2022, 12:45:44 pm

sure.

Title: Re: Low Watt High Gain Project Question
Post by: imgumby001 on October 20, 2022, 12:51:18 pm

Thanks boss!!

Title: Re: Low Watt High Gain Project Question
Post by: tubenit on October 21, 2022, 02:56:15 pm

IF it doesn't have to be single ended and you're looking for something more in the 7-9 watt  6BM8   OR   4-5 watt  ECL84,  you might be interested in looking at these ideas using pentode/triode tubes?


With respect, Tubenit

Title: Re: Low Watt High Gain Project Question
Post by: jordan86 on October 22, 2022, 06:16:10 pm

That probably was inspired by the Ax84 SEL circuit. That schematic would be worth looking at if you go single ended.  If you go that route I’d also highly recommend a conjunctive filter on the OT primary.