Re: Baird T5 restoration project.
EHT bleeder chain resistors replaced. First PSU to be tested is the T23 unit.
It's working as it should so now the T5 EHT power pack will receive attention.
The 2.5volt Cathodevisor CRT heater supply will be disconnected and for test purposes a temporary connection to one of the 4volt heater supplies. The Cossor CRT in the T23 has a 4volt heater.
In one of my earlier posts I mentioned that the Cossor CRT was causing concern. The tube seems to be OK now, replacing those resistors in the EHT circuits has stabilised the negative brightness control potential.
The T23 has developed a picture shift fault. Will deal with that later, the priority is to get the T5 electronics fixed.
DFWB.
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