Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: Willisamps on October 30, 2017, 08:21:23 pm

Title: Preamp only AB763 single channel
Post by: Willisamps on October 30, 2017, 08:21:23 pm

High folks, Just wondering if anybody had any input or schematics for a an ab763 Hoffman board that would be used as a preamp only, going into a solid state rack amplifier. I was hoping it would have reverb and tone controls. Also, in such a build I guess I could use a smaller power transformer since there will be no secondary amplification. Maybe even possibly a switching DC power supply? Thanks for any input-Mike

Title: Re: Preamp only AB763 single channel
Post by: sluckey on October 30, 2017, 10:01:27 pm

Here's one...

Title: Re: Preamp only AB763 single channel
Post by: Willisamps on October 31, 2017, 09:29:46 pm

Awesome. Thanks!

Title: Re: Preamp only AB763 single channel
Post by: drew on October 31, 2017, 09:53:44 pm

http://el34world.com/Forum/index.php?topic=13393


http://el34world.com/Forum/index.php?topic=13517


http://el34world.com/Forum/index.php?topic=15914