DeBug a GGG P45, BSIAB2, and Green Ringer in same box

[tomnottom]

I built a BSIAB P45 Green Ringer in a 1790 box. It works but I hear a pulse sound like a tick tick very faint when the Bsiab and green ringer are on at the same time. It is very faint and the pulse can be sped up by turning the speed knob on the P45. When the P45 and the green ringer are active or the BSIAB and the P45 are active no pulse or ticking sound. Where should I start?

Thanks Tom

[Processaurus]

Start by using shielded wire from the input and output of the P45, I think.  Crosstalk from the clock is easy to pick up by unshielded wires running near it.  You could even try moving wires around with a pencil or plastic pen while it's ticking to see if anything changes by physically moving them around.

A bulletproof solution would be modify the circuit slightly to stop/latch up the LFO on the P45 somehow when it is off.  Like use the stomp switch to short where R25 and  C10 meet either to V+ or ground.

http://www.generalguitargadgets.com/pdf/ggg_p45_sc.pdf

[tomnottom]

Ben that did it. Man, I hate when the obvious isn't what I was thinking.