• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

High voltage PSU

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How about the PY 500A

Used as Horizontal Efficiency diode in many old British/European TV's--Usually easy to find, and reasonably priced NOS........

As I recall, the PIV is 2.5KV, with anode 500mA More than enough for your PSU.

Drawback is the heater volts around 36 if I recall correctly! Are you thinking Bridge or half bridge rec?
 
Ey500 !

Drawback is the heater volts around 36 if I recall correctly! Are you thinking Bridge or half bridge rec?

42 !
Exists in 6.3v heather version, know as EY500.

They feature very hi heather to cathode insulation that may save two additionnal (and heavy insulated) winding from the Xformer.
Philips says 6KV peak.

Yves

Perhaps good also in doubler ?
Halves voltage Xformer and H to K insulation requirement.
 
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