Quote:
Originally Posted by bandersen
Do you guys think this ASC 1,000 pF, 10kV cap is a suitable replacement for the original 500p HV caps ?
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When most rebuilders got a 17AP4 dud, they would rebuild it as a 17BP4 or, if they could aluminize, as a 17BP4B, since as these newer types were more marketable and used the same bulb.
Since the maximum external coating capacitor on a 17AP4 was 500 µµF greater than on the replacement 17BP4, you are still within factory specs on the HV to ground capacity in the CRT circuit. This is the capacitor that you sometimes hear warnings not to increase due to the potential shock hazard.
Increasing the other two 500 µµF 10KV capacitors to 1000 µµF would allow the second HV rectifier to operate more efficiently, but the tiny HV increase and extra loading on the HV output tube and Flyback should be minimal.
I'm impressed by how beautiful the insides of that set is!
Jas.