R.G Keen single pot vibe LFO question

[ohmelter]

Hello. I've modified my vibe to a single pot speed control. However, I have a few "bugs" I'm not sure how to remedy. I'm using the VTL5C3/2 and have a 560 ohm resistor for Re. The speed is still not able to go "as-fast-as" it was with the dual pot. Problem is, the lower I go in ohm's on Re, I get way too much gain on the volume after the LFO...to the point it overdrives. There's some stuff i need to change. Just don't know what.


Anthony

[R.G.]

You're fighting the nature of the LDR. LDRs don't go all the way to 0 ohms. Pots (in theory, sometimes in practice) do. Highest speed is with lowest resistance. Lower the 4.7K resistors in series with the "pot".

[ohmelter]

Thanks R.G. I'll try that out and report back.

Anthony

[ohmelter]

That did the trick!! I lowered the two 4.7k resistors to 2.2k, and it speed things up.

Thanks,
Anthony

[R.G.]

GReat!