Rangemaster troubles.

[smallpoxchampion]

Just finished populating the pcb, installed the OC44 (socketed) and hooked it up to my test rig. Getting the faintest signal when the pot is dimed and a weird clicking/thumping sound that keeps repeating over and over. What in the world could that be on a circuit this simple? I touched up all my solder joints just to make sure, but the problem remains. I removed the transistor as well and it was still making the sound. Would a backwards electrolytic cause that sound?

[midwayfair]

Sounds like your +9v and ground are connected. Check the orientation of all polarized components, especially the "protection" diode.

[smallpoxchampion]

edit-  disregard, I forgot this one needs the charge pump. DUH.