Hey guys! Long time to talk, after 2 years I am back to working on the K40. Life happened and I am excited to get back to it.
I went through Don’s schematic and have it hooked up but my OEM controller is getting hot on one of the ICs. The original design used a massive resistor on the L- to tube, but I didn’t add this as per Don’s schematic. I don’t think this would cause anything as it should be separate.
What do you think it could be? How can I use a DMM to track down the issue?