Re: [Amps] Zero Crossing circuit

[R.Measures <r@somis.org>]

On Nov 18, 2004, at 7:47 AM, Bill Turner wrote:

> 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.

Translation -- The transformer has so much winding resistance that it 
does not need a step-start R.
> --
> Bill W6WRT
>
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Richard L. Measures, AG6K, 805.386.3734.  www.somis.org

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