I've been googling like mad to try and find a fix for this, and while it seems that every 2nd one of these pedals has this problem, no-one seems to have a fix for it.
The 'wet' output of my CCC seems to crap out below a certain threshold. As the note is dying out, noise comes up, and the effect disappears. It's not something I've ever noticed before, as I only ever used it for fairly strident rock music, but I'm using it as a stereo pedal for a more delicate style right now, and it very definitely is a problem.
If you've got one of these old 18v CCCs, you'll know how good they sound, especially in stereo.
Does anyone know if this problem can be remedied, and if so, how?