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Old 25th Apr 2011, 12:18 pm   #7
TriMan66
Pentode
 
Join Date: Jun 2009
Location: Royston
Posts: 120
Default Re: Help with a HMV TV

Hi All,

Thanks for the comments, it is always encouraging to get advice.
I used the CRO on the oscillator. It was an interesting comment about my age, 44. The oscilator was working at 12kHz instead of 15.625kHz. I replaced C81 and the horizontal hold pot which was broken. It now oscilates at 15kHz and I can't hear the whistle!
The boost voltage is up to 530V and I can draw a spark to approx 5mm now. Still no life from the tube though.
There is no glow in the 1S2 (DY86) though.
I have replaced all the waxies and electros, so this includes the boost cap.

regards
Craig
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