News:

Forum may be experiencing issues.

Main Menu

Rangemaster troubles.

Started by smallpoxchampion, April 25, 2014, 11:26:57 PM

Previous topic - Next topic

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

#2
edit-  disregard, I forgot this one needs the charge pump. DUH.