Quote:
Originally Posted by Refugee
They do make the lights flicker some times at switch on.
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This may explain why its only 'sometimes' ...
https://electronics.stackexchange.co...use-at-no-load
It depends on where in the cycle the power is applied.
A correctly rated NTC Thermistor or soft-start circuit should sort it out.
See diagram, this is a soft-start circuit from an Ameritron HF amp.
D1, R3 and C3 delay the closing of K2, allowing R4 and R5 to limit the surge for a few cycles.
Ray