Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: Tone Junkie on July 13, 2010, 12:41:53 pm

Title: reverb issues ab763 circuit new build
Post by: Tone Junkie on July 13, 2010, 12:41:53 pm

I have a reverb tank from the music man I built this into but doesnt seem to work should. its an accutronic fb3a1b with a 1475 ohm input and a 2250 ohm out put what should I have to make this work or can I change some resisters and make this one work . Thank you Bill
PS is there a way to test the tank to see if it works

Title: Re: reverb issues ab763 circuit new build
Post by: sluckey on July 13, 2010, 12:49:09 pm

The AB763 reverb circuit needs an 8 ohm (or close) input on the tank.

Title: Re: reverb issues ab763 circuit new build
Post by: Tone Junkie on July 13, 2010, 01:39:02 pm

Thanks slucky I will order one right away. Bill

Title: Re: reverb issues ab763 circuit new build
Post by: sluckey on July 13, 2010, 02:52:52 pm

The original is pt# 4AB3C1B. Doug has them.  Follow the reverb link at the top of this page. It's the first one.