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January 5, 2026 at 2:34 pm #30176
R_A_Ghosh
Participant

I used a small ac to ac 230v to 230v isolation transformer for mains isolation. Then used a full bridge diode doubler followed by a 68k 5w resistor in series with 200+200+100 V 5watt zener diodes to get 500V.

Extremely low noise than a dc dc converter that disturbed my previous setups ….