Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: goldstache on July 10, 2014, 12:40:45 pm

Title: Built a stout reverb and want some tweaks to experiment with.
Post by: goldstache on July 10, 2014, 12:40:45 pm

The stout reverb is rocking little amp.
Just a couple of questions:
1. It seems as though my mix is wired backwards
CCW verb
CW dry
As per schematic, is this how everyone else has it?

Also it's a nice light verb, wondering if I can get her a little more wet :icon_biggrin:

2: any tone control options recommended?

Thanks!

Title: Re: Built a stout reverb and want some tweaks to experiment with.
Post by: sluckey on July 10, 2014, 01:09:07 pm

Quote

1. It seems as though my mix is wired backwards
CCW verb
CW dry
As per schematic, is this how everyone else has it?

You can reverse the connections to the outside lugs of the mix pot if you prefer to have CCW=dry.

Quote

Also it's a nice light verb, wondering if I can get her a little more wet

Replace the .68µF cathode bypass caps on V1-3 and V3-8 with 22µF caps to increase the gain of the reverb circuit. Might get you enough verb. Also, increasing the value of the coupling caps on V1-1 and V3-6 will give you a fuller sounding verb and maybe a little stronger verb too.

Title: Re: Built a stout reverb and want some tweaks to experiment with.
Post by: goldstache on July 10, 2014, 04:27:55 pm

Well I swapped the wires for the mix pot. 
Interestingly the tone control now works till about 7 at which point it starts to roll off highs?????
I also get a loud DC on pot sounding crackle when mix is full CW (max wet)????
I have no DC on any of the pots legs.  Hmmm
Funky pot maybe.

Also still trying to get a lilttle more EQ flexibility.
Any other thoughts?