[Johnson] A question from A New BA operator.

Wed, 20 Mar 2002 17:42:51 -0800 (PST)

      It has been about 30 years since using the tube
         rigs, so this is renewing some old practices.
      Seems it is correct to run the final at full
         efficency. But, what is the drive control 
      for? Limiting grid drive to safe level?

       If I want to safely lower power can I drop the
           screen voltage?
                     tnx es keep up the chatter,
                               Ed

--- john_walker_beasley
<[email protected]> wrote:
> Cliff,
> 
>     That is interesting.  I suppose this infers that
> the unit should
> be run at full steam all the time for it's own
> protection ?
> 
>     I am busy working on mine and I have reduced
> coupling
> to drop the output in the past.  Now I am concerned
> that this
> is not a good practice !
> 
>     Thanks
>     John
> 
> 
> 
> ----- Original Message -----
> From: "Dr. Clifford L. Coleman"
> <[email protected]>
> To: <[email protected]>
> Sent: Wednesday, March 20, 2002 3:23 PM
> Subject: Re: [Johnson] A question from A New BA
> operator.
> 
> 
> > While restoring my valiant, I found(as the manual
> suggests ) that less
> > loaded causes high modulator current-so I tune it
> up to full power.
> cliff
> > k9jts
> > ----- Original Message -----
> > From: "Mullin, Edward J."
> <[email protected]>
> > To: <[email protected]>
> > Sent: Wednesday, March 20, 2002 1:40 PM
> > Subject: [Johnson] A question from A New BA
> operator.
> >
> >
> > > Hello All,
> > >
> > > I've been lurking on this mail list for a while,
> as I've been
> > > working on my Valiant.  So far I have gotten it
> working again,
> (recapping
> > > and replacing a couple of tubes was all it
> needed:)   Now I want to use
> it
> > > on the air.  (I've been testing into a dummy
> load during restoration).
> I'm
> > > new to BA's (and Ham operations) in general, and
>  I've been reading the
> > > manuals alot.  What I want to know is: What is
> the correct method for
> > > transmitting at less than full power. The manual
> is good at describing
> the
> > > tuning process, but it doesn't really cover this
> information.(at least I
> > > didn't figure out where it was.)
> > >
> > >
> > > 73 de KB1HYS
> > >
> > >
> > > > Edward Mullin
> > > >
> > > >
> > > _______________________________________________
> > > Johnson mailing list
> > > [email protected]
> > > http://mailman.qth.net/mailman/listinfo/johnson
> >
> >
> > _______________________________________________
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> > http://mailman.qth.net/mailman/listinfo/johnson
> >
> >
> 
> 
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