[AMRadio] Re: Pw Supply


Donald Sanders w4bws at comcast.net
Thu Dec 7 23:51:51 EST 2006


Another possible solution is to make a separate power supply with each
transformer and put the outputs in series adding. The upper transformer must
be able to withstand the higher voltage without arcing. Usually requires
isolating the core from chassis. About 30 years a company did that with
several 750 volt power supplies to provide 3000 to 4000 volts output. They
would a special transformer for the highest 2 supplies.

Healthfully yours,
                          Don W4BWS
----- Original Message ----- 
From: "Gary Schafer" <garyschafer at comcast.net>
To: "'Discussion of AM Radio in the Amateur Service'"
<amradio at mailman.qth.net>
Sent: Thursday, December 07, 2006 5:17 PM
Subject: RE: [AMRadio] Re: Pw Supply


> See below..
>
> > -----Original Message-----
> > From: amradio-bounces at mailman.qth.net [mailto:amradio-
> > bounces at mailman.qth.net] On Behalf Of Geoff/W5OMR
> > Sent: Thursday, December 07, 2006 4:48 PM
> > To: Discussion of AM Radio in the Amateur Service
> > Subject: Re: [AMRadio] Re: Pw Supply
> >
> > Gary Schafer wrote:
> > > I am not so sure the correct answer was given and there was no
> > explanation
> > > of why two separate transformers would not work other than the
"primary
> > > current seemed higher".





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