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Heatercathodeshort · 11th May 2020, 12:33 pm

Great! Check continuity to the dropper heater sections resistors, then on to the thermistor and let us know when you have done that. If done in small sections we just might get there.
So, you are checking continuity to the mains dropper, through the sections marked on the BT302 circuit [GEC book 203]as I have posted, R79 R78 R77 R76 not forgetting the thermistor shown as R75 I mentioned earlier as the burnt looking resistor. Do not continue further until you have confirmed continuity to both sides of the thermistor but if in doubt let us know.J.
John.

11th May 2020, 12:33 pm	#92
Heatercathodeshort Dekatron Join Date: Jun 2005 Location: Warnham, West Sussex. 10 miles south of DORKING. Posts: 9,147	Re: Fixing a GEC BT 302 Television Great! Check continuity to the dropper heater sections resistors, then on to the thermistor and let us know when you have done that. If done in small sections we just might get there. So, you are checking continuity to the mains dropper, through the sections marked on the BT302 circuit [GEC book 203]as I have posted, R79 R78 R77 R76 not forgetting the thermistor shown as R75 I mentioned earlier as the burnt looking resistor. Do not continue further until you have confirmed continuity to both sides of the thermistor but if in doubt let us know.J. John.