Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Hoffman Turret and Eyelet Boards => Topic started by: EL34 on March 31, 2015, 08:28:34 am

Title: Fender AB763 Reverb One Channel Eyelet board
Post by: EL34 on March 31, 2015, 08:28:34 am
A customer of mine asked for a one channel Fender style AB763 Reverb eyelet board.
That board and other fender style eyelet boards can be found on this page
http://hoffmanamps.com/MyStore/catalog/EyeletBoard.htm (http://hoffmanamps.com/MyStore/catalog/EyeletBoard.htm)

The Normal channel has been chopped off the regular AB763 reverb board
It is 12 inches long
The diagrams below show what parts have been eliminated
I moved one eyelet over to the left so that it is in line with the eyelet below it for V2 pin 3 (now it is V1 pin3)


Title: Re: Fender AB763 Reverb One Channel Eyelet board
Post by: Tweeds on April 04, 2015, 06:52:20 pm
Nice, I was thinking about this very thing a few months ago, like if I ever built one of these, why bother with the dry channel, and maybe just plug the control holes, etc.  But nice for custom build for sure.  Are there anymore "X" connections or can I leave the one eyelet blank hole down on the far left "X" (by the "Y") and delete the 220K R that feeds into that bridge connection?
Title: Re: Fender AB763 Reverb One Channel Eyelet board
Post by: EL34 on April 04, 2015, 07:15:33 pm
Not sure what you are asking?
Take the diagram above and draw on it so I know what you are asking
Title: Re: Fender AB763 Reverb One Channel Eyelet board
Post by: Tweeds on April 06, 2015, 08:08:34 am
Thanks, it's directly below the word "One" in your board title,

the

Thanks
Title: Re: Fender AB763 Reverb One Channel Eyelet board
Post by: sluckey on April 06, 2015, 08:25:00 am
Quote
...can I leave the one eyelet blank hole down on the far left "X" (by the "Y") and delete the 220K R that feeds into that bridge connection?
yes
Title: Re: Fender AB763 Reverb One Channel Eyelet board
Post by: EL34 on April 06, 2015, 08:26:21 am
I was typing at the same time  :icon_biggrin:


If you only have one channel, then you do not need the 220k channel blend resistor for the normal channel

Title: Re: Fender AB763 Reverb One Channel Eyelet board
Post by: EL34 on April 06, 2015, 08:32:04 am
So someone this morning asked me about AB763 without the normal channel and without Tremolo

Here's a couple diagrams with those parts circled