[AMRadio] Bad news on BC1-J Mod trans.

[Bill Smith]

Hi, Dan

I looked up what I think is the mod transformer in the Peter Dahl catalog.
Too bad about the replacement cost, but notice that there are apparently two
secondaries on the transformer.  Have you identified both secondaries?  (My
apologies if this is too simple.)

GATES BC-1 MOD TRANSFORMER
P/N 478-0410-000
CORE) A-0525/ C-CORE         STYLE #) 09  HIPERSIL C-CORE

PR) 2450 VCT PP 833A'S

S1) 1800 VAC @ 750 VA
S2) 80/110/155 VAC @ 8 VA

DM) HT = 10.625 WT =  7.375 DT =  6.750 MD =  4.750 MW =  5.750
PRICE)    $995.00 Plus S&H FOB El Paso, TX    WEIGHT)   49  LBS

73 de Bill, AB6MT
billsmith at ispwest.com


----- Original Message -----
From: "Dan Hall" <kj7fx at tdn.com>
To: <amradio at mailman.qth.net>
Sent: Wednesday, March 20, 2002 10:23 AM
Subject: Re: [AMRadio] Bad news on BC1-J Mod trans.


> Bill:
> I guess I first became convinced that it was a modulation transformer when
I
> noticed the printing on the top of the thing that says; Gates Modulation
> Transformer part # AM 30469E
>
> Sorry about the sarcasm, Bill
>
> Dan
> ----- Original Message -----
> From: <wwd at netheaven.com>
> To: <amradio at mailman.qth.net>
> Sent: Wednesday, March 20, 2002 9:51 AM
> Subject: Re: [AMRadio] Bad news on BC1-J
>
>
> > 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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