I asked those chaps about pricing on the 6 Meter Amp. In their response
they said they don't have FCC approval yet.
I didn't find any schematics on their website, did I miss them ?
73, Dick, W1KSZ
> Date: Wed, 9 Dec 2009 16:05:20 -0700
> From: xxw0qe@comcast.net
> To: Amps@contesting.com
> Subject: Re: [Amps] OM power power supply design
>
> Alek,
>
> Two power supplies, each with their own diodes and capacitors do NOT
> change anything regarding voltage breakdown in the 2 transformers when
> the outputs ar put in series. Think of the circuit like this: During
> part of the AC cycle certain diodes will be conducting. Redraw the
> circuit with the conducting diodes as shorts and the non-conducting
> diodes as opens and then look at the circuit. Unfortunately the high
> side transformer is still stressed more than the low side one. It would
> be nice if this wasn't the case but then again there usually is no such
> thing as a "free lunch". :)
>
> 73,
> Larry, W0QE
>
> Alek Petkovic wrote:
> > It doesn't look to me, like the secondaries are in series.
> >
> > Each secondary has it's own rectifier and the dc outputs are in
> > series. Is there some sort of path back through the full wave bridge
> > rectifiers which ties the secondaries together?
> >
> > Cheers,
> > Alek
> > VK6APK
> >
> > At 05:04 AM 10/12/2009, Bill, W6WRT wrote:
> >
> >
> >> Whenever you put transformer secondaries in series you must be careful not
> >> to
> >> exceed the insulation rating between a secondary and the iron core, and
> >> also
> >> between a secondary and the AC primary.
> >>
> >>
> >
> >
> > http://www.qrz.com/db/vk6apk
> > http://www.qrz.com/db/vk6py
> >
> >
> > _______________________________________________
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> > Amps@contesting.com
> > http://lists.contesting.com/mailman/listinfo/amps
> >
> >
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