Philco Briefcase 19

[dieseljeep]

Originally Posted by Kevin Kuehn

I suppose if the yoke is shorting you could be getting some high voltage spikes across it. I wonder what would happen if you pulled the vertical output, or the yoke plug, just to see if that keeps things cooler? Someone with more experience than I will know if that's a safe test to unplug the yoke.

If there's HV and the yoke is disconnected, you'll burn the CRT phosphors real quickly. If running the set without a yoke, you'll have to jumper the crt heater at the socket to complete the heater string. Leave the CRT out for now, until you find out what's really ailing it.