Quote:
Originally Posted by petertheorgan
The final problem to fix turned out to be a missing 32uF capacitor across the HT supply to the Line and Frame stages ( c69 and c71) two 16uF's in paralled ( and missing) but please enjoy the Photos and soon you will be able to see it working at Dulwich
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Odd that c69/c71 were missing, as they're very visible! Being bolted to the CRT mount.
In the attached photo, it is the top electrolytic capacitor, these were replaced in the 1946 refurbishment, but the original was a double capacitor too.
I assume the original had been removed, and nothing put back in it's place?
I image the lack of it would have caused hum and generally instability in the timebases.
Phillip