it popped the magnatron, driver circuitry and HV cap. I have replacements including the obsolete optocoupler.
I'm interested in the magnatron driver circuit which consists of a Toshiba TLP511GA optocoupler. Looks like a dual photo thyrister. Two thyristers with two corresponding LEDs. It drives a BCR16HM triac. That circuit is fried along with a small resistor that let out the magic smoke.
My interest is the thermister input circuit. Not that it's bad, but I want to be able to replace with another thermister with another curve. In another requirement, I'd like to be able to set to a lower temp, so I can proof yeast. I know the probe contacts a microswitch when inserted.
Also interested in ideas on how to accomplish the above.