[AMRadio] Bad news on BC1-J
Dan Hall
kj7fx at tdn.com
Wed Mar 20 13:27:54 EST 2002
Dudley:
Curiously neither the manual or the transformer reveal anything about the
ratio or impedances. The tubes are 833As modulating 833As. A pair each,
though I am running just one in the PA.
Dan
----- Original Message -----
From: "WA5SVL" <kdud1 at pdq.net>
To: <amradio at mailman.qth.net>
Sent: Wednesday, March 20, 2002 9:57 AM
Subject: Re: [AMRadio] Bad news on BC1-J
> Hello let me know what the primary and sec resitance are I have a couple
of I kw mod
> transformers , and what tubes you are running, WA5SVL
>
> wwd at netheaven.com wrote:
>
> > Dan,
> >
> > Are you sure it really is a mod xfmr? Maybe a power xfmr pressed into
mod
> > duty?? It has happened more than once and they can function failry well.
> > Your description of seems odd, though.
> >
> > In <002c01c1cfdb$19c653e0$47190242 at K6BW>, on 03/19/2002
> > at 10:47 PM, "Bill Smith" <billsmith at ispwest.com> said:
> >
> > >Dan, big transformers like that don't open very often, they usually
> > >develop a short between turns. I'd look very carefully at the
terminals
> > >to see if you can find a broken wire on the outside of the core.
> >
> > >Here's hoping!
> >
> > >73 de Bill, AB6MT
> > >billsmith at ispwest.com
> >
> > >----- Original Message -----
> > >From: "Dan Hall" <kj7fx at tdn.com>
> > >To: <amradio at mailman.qth.net>
> > >Sent: Tuesday, March 19, 2002 5:58 PM
> > >Subject: [AMRadio] Bad news on BC1-J
> >
> > >> Well Folks:
> > >> A couple of years of on and off labor (several hundred hours) ,
several
> > >> hundred dollars, and lots of hopes. My modulation transformer is
open on
> > >> the secondary side. No wonder the tubes acted like they were doing
their
> > >> jobs. It just wasn't getting through to the other side.
> > >>
> > >> I'm parting it out. I'm done.
> > >>
> > >>
> > >> Dan
> > >> KJ7FX
> >
> > Bill N2KQA
> > --
>
> --------------------------------------------------------------------------
------------
> > wwd at netheaven.com To the warriors go the spoils of war; to the hindmost
. . the surplus.
>
> --------------------------------------------------------------------------
------------
> >
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