Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: plexi50 on October 07, 2018, 02:15:24 pm

Title: Single Channel Bassman
Post by: plexi50 on October 07, 2018, 02:15:24 pm

I have this single channel Bassman layout from Mojo. Something don't look right. Why it is not using a coupling cap to the volume pot?Is there a single channel Bassman here on the forum from Doug or others?
I found this one 6G6

Title: Re: Single Channel Bassman
Post by: sluckey on October 07, 2018, 02:37:36 pm

The blackface Bassman AA864 doesn't need one. This circuit is quite different from a 5F6A. The schematic explains all.

Title: Re: Single Channel Bassman
Post by: Willabe on October 07, 2018, 02:47:15 pm

Fender brown/black face amps use the TS caps as coupling caps.

Title: Re: Single Channel Bassman
Post by: plexi50 on October 07, 2018, 05:04:31 pm

Ok im a soldering. I want to hear this tonight. Thanks all!

Title: Re: Single Channel Bassman
Post by: JKRamsey1991 on October 11, 2018, 06:44:52 am

The layout you posted isn’t cut off in the right spot. For the Norma channel only Bassman you only need two preamp tubes.