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Old 5th Jan 2012, 11:56 am   #16
Anthony
Hexode
 
Join Date: Sep 2006
Location: Hertford, Herts. UK.
Posts: 338
Default Re: Cossor CDU110 'Scope: Brightness Probs.

Rob
Thank you. These two resistors are fine but I have no way of testing the EHT caps or selenium rectifiers safely.
I wonder whether you and other interested experts think it would be worth me replacing all the EHT caps and the EHT rectifiers?
For silicon diodes presumably I'll need to add in surge limiting resistors to each diode? Would 100K be reasonable? I do not want to damage the Txfmr.
It still puzzles me that the brightness does not increase as the Grid goes more positive wrt Cathode - could that be secondary to the overall EHT fall-off?
Best
Anthony
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