Quote:
Originally Posted by vortalexfan
OK well I also noticed that the previous owner of this TV had installed a 6BU8 in place of a 3BU8 tube in the TV I'm guessing that should also be replaced with the proper tube as well?
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First, you might want to see if someone's put a shunt resistor across the 3BU8 heater (pins 4 and 5). It'd be a low value resistor, something like 20 ohms. Without the shunt for protection, seems like the 6BU8 would be lighting up like that 6CB6 did.