[AMRadio] BC1-J Mod trans. is fine.

[Dan Hall]

Ok:
I have just successfully modulated into the dummy load with the transformer
hooked up right. Looked great with 100% modulation on the scope. Hey, not my
fault the Gates schematic had the wrong numbers on it and didn't look at all
like the transformer that was installed.  Well, ok. Yes it was. I should
have verified the thing before I wired it up. Anywho, were getting closer to
being in business. Now the damn thing works fine into a dummy but the
modulator oscillates when into the antenna. I still need to clean up the
transmitter side of things. But there's hope.

Dan
----- Original Message -----
From: <KC4QLP at aol.com>
To: <amradio at mailman.qth.net>
Sent: Wednesday, March 20, 2002 12:38 PM
Subject: Re: [AMRadio] Bad news on BC1-J Mod trans.


> This transformer cost the station $995.00 3 years ago and had to be hand
> built...it took 2 weeks to get it.Needless to say...the weight difference
> between the old mod transformer in the Raytheon RA 1000 and the new one
from
> Peter Dahl...hehehe....well lets just say I could easily hold the new one
> without getting a hernia. The only draw back is the new transformer
"sings"
> {the new one isnt encased in an oil filled box} --take note of the
secondary--
>
> << 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 ----< yes this secondary is used in the transmitter
>  S2) 80/110/155 VAC @ 8 VA--< however this one is not used...voltage and
> current rating too low
>
>  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 >>
>
>
>
> Bob Carter
>  Operations/Engineering
>
>  WGAI-NewsRadio 560 AM Stereo .., WCXL 104.1 Beach 104..., WQDK 99.3
> Q-Country..., WWOC 94.5 WaterCountry 94.5..., Ray Communications Radio
> Network
>
>  Mid-Atlantic Engineering Services--providing radio stations with
engineering
> services in the middle eastern Atlantic area.
> e-mail:MidAtlanticEngineeringService at yahoo.com
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>     Chief Engineer--WRCS-AM 970 Ahoskie NC
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