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FERNSEH · 1st Jun 2021, 2:52 pm

Hi Andrew,
Many thanks for your research.
I've printed the tube re-gen topic and will read it later today.
I'm sure what is certain the tube has never been reactivated before and the set was taken out of service when either the vision IF amplifier valve went down to air or the failure of the mains dropper resistor.
Good chance there might be plenty active cathode oxide material remaining to make a bright picture again.

DFWB.

1st Jun 2021, 2:52 pm	#28
FERNSEH Dekatron Join Date: Mar 2005 Location: Gateshead, Tyne and Wear, UK. Posts: 7,444	Re: HMV 1920 made in 1960. Hi Andrew, Many thanks for your research. I've printed the tube re-gen topic and will read it later today. I'm sure what is certain the tube has never been reactivated before and the set was taken out of service when either the vision IF amplifier valve went down to air or the failure of the mains dropper resistor. Good chance there might be plenty active cathode oxide material remaining to make a bright picture again. DFWB.