Geo parapedal/modified Univibe LFO Dual Log pot substitute Question

[numpty]

Could RG's Modified Univibe LFO replacement for the dual log pot in the unvibe work in the Tyco parapedal using a normal single gang wah pot

[slacker]

Yeah, I did basically that and it worked great.

[numpty]

Slacker, where did you get the vactec dual led/ldr vrc3/2 in the uk

[slacker]

I didn't use vactrols I just made my own using LDRs and LEDs.

What I did was use the LDRs as variable resistors instead of wired how the pots are. So on the schematic here http://www.geofex.com/FX_images/parapedal.gif I put the LDRs from point A to G and from H to D, and removed R6 and R5.

Hope that makes sense.

[numpty]

yes it does, thanks-I'll try that. BTW did the sweep sound like the original pedal?