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Old 24th Jul 2017, 7:52 am   #31
Heatercathodeshort
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Join Date: Jun 2005
Location: Warnham, West Sussex. 10 miles south of DORKING.
Posts: 7,456
Default Re: Kolster Brandes RV 10 (Crown)

Radio and TV Servicing. 1960/61.

Not a lot to wrong here. Check for man made faults when you carried out the capacitor change. Check screen grid, pin 8 of PL81 for voltage and scope the line drive waveform to pin 2. Run with the U26 [R20] disconnected to eliminate an internal short in the valve damping the LOPT. Does the LOPT get warm after 15 mins? I had a number of underwinds [primary] Fail on these models. John.
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Last edited by Heatercathodeshort; 24th Jul 2017 at 7:59 am.
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