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PM received, D09 schematic and Stan Prentiss list of production changes has been emailed. If yours is a code 2, check if the HV regulator cathode circuit changes have occurred. A regulator limiter diode and 10 meg is added on the other side of the 1K 5%
Good luck with cup repairs, I put a piece of #1/0 HV cable jacket insulation flattened out under the HV cup of a 16" color Zenith (chassis 12A10C15) that had burned a hole thru arcing. It is still holding up after 20 years, my woodshop set.
I drilled out the conductive carbon path first. Not sure if I used RTV but that is a great idea. The black stuff I suppose the same as used on tripler-fly terminals.
The cup to chassis mounting screws were long enough and there was clearance for the tube to be installed
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"When resistors increase in value, they're worthless"
-Dave G
Last edited by DavGoodlin; 09-15-2017 at 12:22 PM.
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