Question about 3340 VCO module

[fredrik]

Yeah, that stripboard layout program is pretty shit at rendering things like that. I marked the right pins in the drawing I posted to another 3340 thread:

Oscillation problem on my VCO

So that looks like Sam’s simple layout with a few minor tweaks. I’ve marked the cv source voltages below. Measure them either at the resistors (A) or near the wires (B) relative to 0V (eg the rail marked below): [image]