[R-390] More Ballast Tube Noise

[Bruce Hagen]

No way that can be correct. It produces zero net BA gain.

Bruce


----- Original Message ----- 
From: "wglevy" <levyfiles at att.net>
To: "R390List" <R-390 at mailman.qth.net>
Sent: Thursday, February 10, 2005 7:24 PM
Subject: Re: [R-390] More Ballast Tube Noise


> You all are wrong.
> To change a tube radio you go to the boatanchor store and sell one and buy
> another.
> Whats hard about that?
>
> ----- Original Message ----- 
> From: "Tom Norris" <r390a at bellsouth.net>
> To: <R-390 at mailman.qth.net>
> Sent: Thursday, February 10, 2005 3:38 PM
> Subject: Re: [R-390] More Ballast Tube Noise
>
>
> >
> > I've used a similar method several times in the past, however instead of
> > a ballast it was a radiator cap and instead of a "tube radio" it was a
> car.
> >
> > Tom NU4G
> >
> > >  > How do you "change a tube radio"?
> > >>
> > >>  Barry(III) - N4BUQ
> > >  to which one of the other Barry's replied ---
> > >
> > >Actually, Namesake-san, the thing reads "Can be changed as easily as a
> radio
> > >tube"  However, if you want to do it the other way around, this can be
> > >accomplished by means of the following procedure:
> > >
> > >1.  Unplug ballast tube from Radio #1 carefully, avoiding excess 
> > >wiggling
> > >and jiggling and set tube aside carefully in a safe place..
> > >2.  Remove Radio #1 and set aside (for shipment approved repository --
> > >address to be supplied later)
> > >3.  Move Radio #2 (w/o ballast tube) exactly into position previously
> > >occupied by Radio #1.  (Radio #2 must be a compatible model, such as
> > >R-390/URR, R-390A/URR, R-391/URR, etc, -- not a Zenith Transoceanic 
> > >which
> > >requires a 50A1 ballast tube, unless Radio #1 is a Zenith H-500, x-600,
> > >R-520, of course.)
> > >4.  Lower ballast tube removed in step one into position in Radio #2,
> being
> > >careful to orient pins properly and gently press downward to install 
> > >into
> > >socket.
> > >5.  Congratulations!  You have now successfully changed a tube radio.
> > >
> > >runnin' & duckin'
> > >Barry
> >
> >
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