[codefox1]

Glad you asked. If you can run the set up slowly with a variac and a good old fashioned analog milliamper meter (say 500 MA) between the 80 filament and the first filter capacitor, you can get a good idea of what is going on as the set slowly warms up. Chances are if you have not replaced the filter capacitors, they will cause the current draw to become out of range as you advance the variac you will notice the current goes up a lot if there is anything wrong. Be prepared to power off at once and mend the problem before subjecting another 80 to a premature end. All electrolytics and all wax capacitors must be replaced in old radios, no good foolproof way to test them has convinced me so yet.

Best!