When my Sunbeam Microwave Oven (Model No. SMW777) died I traced the problem to the magnetron. Since that is the MOST expensive part to replace, I just decided to buy a new Microwave -- however the remaining electronic parts appear to be in good working condition and are for sale as listed below:
High voltage capacitor - $10
High voltage transformer - $20
Full display with mother board and wiring harness - $15
Door sensor - $5
Magnetron diode -$3
Cooling fan - $15
Power cord - $10
Or buy them all plus 4 rubber feet $60.00.
Phone my cell (4six9)438-235six [but NO texts please - too many scammers now using Craigslist so they will not be answered!]. I will remove each item from Craigslist as soon as it's sold, so please don't ask if it's still available.