help with crybaby mods - sounds bad!

[jg24]

Took me a while!    But finally found the time to get the wah sounding decent enough to me - certainly better than it did before I pulled it apart.

You were right GP - the sweep cap was the culprit.  I hadn't presumed changing from 10nf to 15nf would make a massive difference to the frequency - but it certainly does.  Once I swapped back to 10nf the 'vocal' trimpot worked - with the 15nf it didn't seem to have any effect - and the massive drop in frequency was gone.  I wonder now about the difference the pot makes - especially in combination with the 'sweep' cap.  The pot in mine is 100k - I wonder if you need a larger value pot to use a higher value sweep cap?  It seems that a 20nf cap is a very popular mod - from my own experience I can't see this working unless something else (the pot I'm guessing) is different from that in the pedal I've got?

Anyways, if anyone's interested here are the values I settled on for the four key resistors (having replaced the trimpots with resistors once I found a setting I was happy with):
Gain/bass - 470ohm; Vol 56k; vocal 68k; mids 2k2
I left the BC108c trans in after trying the stock ones I pulled out.  The slightly lower gain makes a slight difference to the sound I think.  Help make things a bit smoother (also added caps across the collector and base legs - one the 22pf cap from the buffer I took out! - in case of RF interference... don't know if they help in that regard to some small degree as well).

[Paul Marossy]

Huh, I must have missed the value of the sweep cap that you used in there somehow. That might have worked well for baritone guitar.