Description: My first background - hope you like it. I do lots of technical work, have lots of interesting photos. Speak up if you want more (only better!)
Probably a conservative estimate.
That particular circuit is part of an air cooled HV power supply to a 60KW Television transmitter.
It's amazing what a little dust can do.
Proof positive that filters on the air INTAKE of electronic equipment is important, and that the changing of those filters regularly is necessary.
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According to my calculations it would have taken about 10.000 Volts to do that damage. What kind of circuit is that? A high-voltage heater?
Probably a conservative estimate. That particular circuit is part of an air cooled HV power supply to a 60KW Television transmitter. It's amazing what a little dust can do. Proof positive that filters on the air INTAKE of electronic equipment is important, and that the changing of those filters regularly is necessary.