Blend Control

[rocker-D82]

I try to develop a new kind of overdrive, inspired by a lot of old type. I try to insert a blend control - like voodoo sparkle overdrive - but i want to use only a single gang pot. Any ideas?

[seanm]

All you need is a buffer on the dry side and then use a pot to mix the wet and the dry. The buffer can be an opamp or a transister. See Jack Orman's basic buffers article.