[AMRadio] Keying a Gates BC-1?


DAVID AABYE w4qcu at prodigy.net
Mon Apr 18 17:49:12 EDT 2005


Thanks for the reminder, Bob.  I have several years of
ER and will look for your article. 

73 de Dave

-- Bob  Login <jlogin at mindspring.com> wrote:
> Hi Dave,
> I wrote an article on a BC1T with a diagram for the
> control circuit. It was 
> published in ER about 2-3 yrs ago.
> I used the BC1T for 2yrs before being forced to sell
> because of a move....73 
> Bob, AA8A
> ----- Original Message ----- 
> From: "DAVID AABYE" <w4qcu at prodigy.net>
> To: <amradio at mailman.qth.net>
> Sent: Monday, April 18, 2005 5:18 AM
> Subject: [AMRadio] Keying a Gates BC-1?
> 
> 
> > Greetings Heavy Metal Enthusiasts,
> >
> > I'm trying to determine how best to place the
> > oscillator in standby during periods of receive.
> >
> > I have two main concerns.  One is protection of
> the
> > 833's if plate voltage is applied without drive. 
> The
> > second is avoiding excessive cathode-to-filament
> > voltage in the 807 audio drivers (cathode
> followers).
> > Perhaps both worries are more imagined than real?
> >
> > Anyway, please share your experiences.  Any advice
> > will be much appreciated.
> >
> > 73 de Dave, W4QCU
> > Oak Ridge, TN
> >
>
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