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RE: May I suggest a NTC thermistor on the primary?

Hi Gary, thanks for your suggestion. The thermistor is certainly a good idea. It will lessen the initial stress on the rectifier and good for the large electrolytic cap on power up. Since the diode replacement there has not been any transformer buzz issue.

With a restoration project I'm hesitant to modify the circuit in any way but that said another change I would make to the PS is to do like the H-3aa and put a bleeder resistor after C16. In the event that the down stream 1.5 fuse trips, C16 will remain charged and yes I got shocked by that cap!

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  • RE: May I suggest a NTC thermistor on the primary? - 33dot33rpm 17:30:25 03/06/24 (0)
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