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Old 22nd Nov 2020, 10:50 am   #5
Heatercathodeshort's Avatar
Join Date: Jun 2005
Location: Warnham, West Sussex. 10 miles south of DORKING.
Posts: 7,875
Default Re: CRT Rejuvenation orientation

The HT rectifier in the original data is an old selenium type. This needs to be retained. It's replacement with a silicon diode is not satisfactory.

I think this may be its secret. A clapped out rectifier will have a high resistance and almost self regulating low current, ideal for the CRT reactivation process.

I have made up a series of CRT connector leads for the various bases including a switched gun colour one.

I can give some details of the reactivation process using Bertha that differs slightly from the PT text.
Regards, John.
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