Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Misc Schematics and Layouts => Topic started by: bnwitt on May 04, 2009, 01:09:13 pm

Title: Fender AB763 Twin Reverb Boards
Post by: bnwitt on May 04, 2009, 01:09:13 pm

Since I am black facing the 135 Watt Twin Reverb I did my normal board layout drawings.  So, I thought I would share the boards with anyone who might be interested.  I'll share the whole wiring layout when it is done.  These boards can be used to build a black face twin reverb or Super Reverb etc.
Barry

Title: Re: Fender AB763 Twin Reverb Boards
Post by: Danskman on May 04, 2009, 02:40:22 pm

Very nice work! Thanks for sharing it! What software are U using to draw this?
regards,
Danskman

Title: Re: Fender AB763 Twin Reverb Boards
Post by: bnwitt on May 04, 2009, 02:44:03 pm

Microsoft Visio 2003

Title: Re: Fender AB763 Twin Reverb Boards
Post by: jasperok on May 04, 2009, 03:34:11 pm

such nice layouts

btw do you have to switch the OT when using this layout or could one use he stock UL transformer?

Title: Re: Fender AB763 Twin Reverb Boards
Post by: bnwitt on May 04, 2009, 03:40:29 pm

If you are talking about the Silver Faced 135 Watt Twin Reverb, you could probably use the OT and just drop the UL connections, (somebody correct me if I'm wrong) but you have to change the PT

Title: Re: Fender AB763 Twin Reverb Boards
Post by: bnwitt on May 05, 2009, 09:44:31 am

Here is a version of the boards with the PI output components altered for a post phase inverter master volume which I will be using in this build.  Not much different, just a couple of additional coupling caps and terminals.  This is the master volume that uses the double stacked 1meg audio pots.

Title: Re: Fender AB763 Twin Reverb Boards
Post by: PJBayer on October 02, 2010, 12:44:25 pm

Beautiful work. Any chance you'd send out the Visio diagram so I could modify to reflect my layout?

Title: Re: Fender AB763 Twin Reverb Boards
Post by: joepirroni@rcn.com on March 03, 2014, 07:33:52 pm

can someone tell  me where to download a ab763 one channel schematic
I want to build a ab763 one channel deluxe reverb

Title: Re: Fender AB763 Twin Reverb Boards
Post by: sluckey on March 03, 2014, 07:44:09 pm

Which channel?