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Old 30th Jul 2017, 8:31 am   #50
Heatercathodeshort
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Join Date: Jun 2005
Location: Warnham, West Sussex. 10 miles south of DORKING.
Posts: 6,894
Default Re: Kolster Brandes RV 10 (Crown)

Mmmm! OK run the chassis with just the scan coil connections disconnected at the coils themselves leaving all connections to the transformer in place. You should be able to get some EHT and a vertical line on the screen.

Remember that the frame timebase will probably be in poor condition due to leaky capacitors but once again you should be able to see some frame deflection if you adjust the height and frame hold controls.

The focused blue glow in the PL81 is quite normal as it is with almost all line output valves. If the timebase runs OK with the coils disconnected it points to shorting turns but I would not take a bet on it.

I'm not sure what you mean when you say' the scan coils are loud' together with the arcing from the white wire. Was the arc to free air or to a connecting tag? J.
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