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  #1  
Old 09-14-2017, 11:18 AM
Findm-Keepm's Avatar
Findm-Keepm Findm-Keepm is offline
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Quote:
Originally Posted by zeno View Post
I am with Tom C. Discharge the CRT & pull off the anode lead.
Pull the 3CU3 socket & clean it with 91% isopropyl alcohol.
Clean all the wires to it & the "cup" also. Put back together with
the new 3CU3 & try it.

BTW dischage the CRT AGAIN before reassembly !
BTW #2 most HV rect tubes DO NOT have a filament glow !

73 Zeno
LFOD !
I'd also clean the regulator socket and cap above the cage - it has full 25KV on it and looks as though it may be just as dirty, judging by the plate cap.

HV loves and attracts dirt - it's a much lower resistance/impedance and may be your only problem.
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Last edited by Findm-Keepm; 09-29-2017 at 06:39 PM.
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  #2  
Old 09-15-2017, 04:45 PM
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Radiophile2001 Radiophile2001 is offline
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Quote:
Originally Posted by Findm-Keepm View Post
I'd also clean the regulator socket and cap above the cage - it has full 25KV on it and looks as though it may be just as dirty, judging by the plate cap.

HV loves and attracts dirt - it's a much lower resistance/impedance and may be your only problem.

Will do...thanks!
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