Re: Supercapacitors - Possible anti-surge device to protect filaments/ heaters

Jim Shorney · 2025-05-22T18:54:05-07:00

Or a NTC surge limiter in the AC mains side of the power supply. "Jim VE7RF via groups.io" <jim.thom@...> wrote: -- 73 -Jim NU0C

Jim Shorney All Messages By This Member #85068 Or a NTC surge limiter in the AC mains side of the power supply. On Thu, 22 May 2025 18:10:03 -0700 "Jim VE7RF via groups.io" <jim.thom@...> wrote: Wasted effort.? ?You would be better off to do any surge limiting with an outboard step start circuit.? ?Like a 20 ohm resistor in the hot leg? of the incoming mains.? ?Then shunt it after 2-3 secs with a spst relay. -- 73 -Jim NU0C

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