pingpongcomputer
Active member
I have a Synthrotek Ratatak rat clone board that I just realized calls for a TRS jack on the input, can I just use a TS jack and leave the ring solder point on the board unconnected if I don't plan to add a 9v battery? Or solder the pin from the DC connector jack to the ring solder point? Here is the schematic, I'm not great at understanding how circuits work: