Dennis Berry wrote:
> There has been a lot of recent discussion on Step Start circuits.
> Would one of the 'hockey puck' or solid state relays work OK in this
> application? They are usually available with 25 amp capability at a
> decent cost. I'm curious if the solid state relays are susceptible
> to any RFI/EMI pick-up from an amplifier? Any experience with one of
> these devices?
Yes, they are quite sensitive to RF. In my case, I found that RF tended
to turn them off. I added a pi filter to the control circuit, but it
didn't help much. Finally, I wrapped some no. 12 wire around a large
toroid and put that in series with the 240V line, and added an 0.01 uf
bypass capacitor to ground, which finally did the trick.
--
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco
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