On Wed, 17 Nov 2004 16:19:47 -0600, Phil Clements wrote:
>Zero crossing circuits (solid-state relays) are far too fast acting
>for use as a soft-start device, Ed.
>
>A properly designed soft-start circuit has a delay equal to the time
>it takes the H.V. meter to reach 2/3 of the way to its normal reading.
_________________________________________________________
I must disagree. My Command HF-2500 uses zero-crossing solid state
devices to turn on and they work perfectly. There is no thump, no
noise, and the turn-on is smooth as silk. Other than those devices,
there is no soft-start circuit of any kind.
--
Bill W6WRT
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