nospam4me@juno.com wrote:
>
> The QST Article was called "A Line Side HV Regulator".
> Didn't work for me for many reasons, some personal preference...
> most important was its poor response to the dynamics of SSB
> operation. Lot's of noise to filter, the devices required for serious
> power were expensive. I have a copy of the Article in my files, I'll
> try to look up the issue date in the mid/late 80's.
> cheers
> skipp
>
> :From: "Hans Goldschmidt" <sm5ki@algonet.se>
> :I remember seeing in QST a primary voltage regulator ( with tyristors )
> :sensing the secondary high voltage by means of a voltage divider. Much
> :better than a rheostat or a Variac. In a filament stabilizer/adjuster
> you use
> :instead the rectified secondary voltage as reference.
>
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There is a article in QEX magazine this year on a 2400 volt High Voltage
regulator. It uses symetrical phase control on both the positive and
negative portion of the AC wave thus eliminating transformer banging.
Denis VE6AQ
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