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Old 01-20-2008, 02:07 PM
Konrad Schiecke Konrad Schiecke is offline
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Join Date: Jul 2006
Posts: 36
motorola 7jp4 resistor subsitute

Hi Terry, if you are going to power the crt heater with a filament transformer you need to put in its place in the heater string a 10 ohm ,5watt resistor. I don't thing you need a surge protector since there is enough ballast resistance in series with the heater strings and b+.
Konrad
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