I decided to fire up my 800c (as part of my home theater) to watch a bit of Star Wars (Ep. IV) with my son. As I turned on the Fisher, there was a very loud POP! and a flash of light from under the right side of the receiver. I quickly powered it off and unhooked it (after turning on Star Wars for my son - he can use the TV speakers) and took it over to the bench. After cracking the case and searching for any burnt components and smelling for smoke, I finally found...some charred spider legs. It seems Charlotte decided to climb into my receiver and happened to be touching both the B+ and ground when I powered the Fisher on.
On the plus side, having the Fisher on the bench allowed me to replace the 1.2k power resistor, add a CL-90 (that finally arrived from Mouser 8 weeks after I ordered it) to the AC line and rebias the receiver (since the EH7591 tubes have burned in by now) so it was probably the universe's way of getting me to do this maintenance. :thmbsp:
-D
On the plus side, having the Fisher on the bench allowed me to replace the 1.2k power resistor, add a CL-90 (that finally arrived from Mouser 8 weeks after I ordered it) to the AC line and rebias the receiver (since the EH7591 tubes have burned in by now) so it was probably the universe's way of getting me to do this maintenance. :thmbsp:
-D