Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: ACHIEVEIT on July 31, 2012, 01:58:41 pm

Title: Hoffman AB763 Tremolo working on both channels??
Post by: ACHIEVEIT on July 31, 2012, 01:58:41 pm

Hi guys,

a few months ago i finished retrofitting my DRRI with a Hoffman AB763 from the Airtight Garage. By the way, I added a switched pot in the tremolo 'intensity' to disconnect the tremolo circuit and add some gain when necessary as per the instructions found here: http://www.el34world.com/Forum/index.php?topic=13453 (http://www.el34world.com/Forum/index.php?topic=13453)

What i noticed while playing yesterday: the tremolo circuit is actually working on both channels. The reverb only works on the second channel. Is this deliberate or have i screwed anything? Thanks a lot!

Title: Re: Hoffman AB763 Tremolo working on both channels??
Post by: HotBluePlates on July 31, 2012, 04:52:16 pm

You are perfectly fine.

The tremolo on the Hoffman-style boards is applied to the output tubes, rather than on the reverb channel only (as in the original blackface amps). Therefore, you will hear the trem on both channels.

Title: Re: Hoffman AB763 Tremolo working on both channels??
Post by: ACHIEVEIT on August 01, 2012, 12:15:02 pm

That's a relief, thanks a lot HotBluePlates!