Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: daveyajd on October 01, 2020, 11:13:55 am

Title: Sans Fx loop wiring change
Post by: daveyajd on October 01, 2020, 11:13:55 am

Hello all,

I am building a version of the Friedman Dirty Shirley. The original has a Metro style FX loop installed. I am planning on adding this eventually but not right away.
My question is about the 220k resistor that goes from master lug 3 to the FX loop on/off switch. If I am leaving out the FX would I just connect this to treble lug 2 where the FX would come back in? Or is this resistor used because there is an FX loop and I would just use wire to connect master and treble?


Aaron

Title: Re: Sans Fx loop wiring change
Post by: sluckey on October 01, 2020, 11:32:58 am

Schematic?

Title: Re: Sans Fx loop wiring change
Post by: daveyajd on October 01, 2020, 11:45:53 am

Steve sorry I don’t have a schematic. This build is being done entirely by photograph forensics and similar lineage comparisons.  :icon_biggrin:


Aaron

Title: Re: Sans Fx loop wiring change
Post by: sluckey on October 01, 2020, 12:08:27 pm

Then my answer is maybe/probably...   :dontknow:

Title: Re: Sans Fx loop wiring change
Post by: daveyajd on October 01, 2020, 12:33:29 pm

 :l2: That’s what I was thinking too!


Aaron