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Old 09-26-2019, 01:58 PM
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Tube TV Tube TV is offline
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Yes, looking forward to seeing a schematic!
I would disconnect all connection off the 5U4 that were suppling and voltages and see if it was arcing after that.
Beyond that I would avoid any more power ups with that much load put on the transformer otherwise it's going to cook out a winding in short order, if that is not already a issue.
Look for defective 5U4 tube socket, also a filter choke with a short to chassis. I can't imagine the 5 volt cap would not cause that much of a problem.
As someone else mention the focus, check that the focus control is not shorting to chassis.
What is the current draw on the input of the transformer with all the tubes out?

Last edited by Tube TV; 09-26-2019 at 02:03 PM.
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Old 10-01-2019, 12:45 AM
vortalexfan vortalexfan is offline
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Posted below for everyone's information is the power supply section of the Schematic for this TV.

Hope this helps everyone help me figure out why my TV's power supply is drawing over 8 Amps of current and causing my 5U4 tube to arc and nearly redplate.
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File Type: jpg Power Supply Schematic for Philharmonic Model 8200 TV.jpg (39.6 KB, 32 views)
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