I’m a little confused as to which trimmer to use with a J201. Is it a 20K trimmer or 20 Ohm trimmer? It just says a 20 trimmer in the build doc. Also if I want to use the switch, I’m assuming it is a SPST on-on, correct?
A couple more questions. Would a 30K trimpot make much difference? 20K trimmers seem to be a little hard to get or take a long time to get. Where do you guys get your parts if they aren’t available here?