e-licktronic Forum

I accidentally connected 5V to the wrong point (i think r154) when testing the BD circuit.
After that i get some DC sounding noise from the basedrum output to a small mobile speaker/amp.
I tried to test the transistors with a mm i don't know how to test the opamps.
Does anyone have a clue of what i can test next? What could i have fried?
I have a USB scope and just recieved a component tester (transistors etc.).

I hope someone can help.

Have you tried swapping out the 4558s?

Thx for the reply.
I just tried again. I must have made some error when testing before, the first three voices i built are working now