[BC] Bauer/Sparta 603

[Mike Holderfield]

Yes a different vintage(version) I guess.  It is a Bauer 603. 3 kilowatt.
I don't know the history. I guess it was made prior to the G-G model.
Years ago I called Paul Gregg and ordered a manual.
I received a manual for the G-G model. Called him back and described the
TX I had and the tube configuration. He said "oh...that one" and sent
me a manual.

The 4CX250 ipa has some kind of transmission line tank circuit that was
tapped at the 180 degree point to provide out of phase drive to one
of the P-P finals. The end of the line drove the other one.
A real b*tch to balance the drive to the finals. Very touchy.

Inductive coupled transformer type output from the finals with no
loading control. A fixed(manual adjustable) shorting bar for loading.

Sounds like a great transmitter so far? <grin>

mike


----- Original Message ----- 
From: "Chuck Leavens" <chuck at wduq.org>
To: "Broadcast Radio Mailing List" <broadcast at radiolists.net>
Sent: Thursday, May 19, 2005 4:29 PM
Subject: Re: [BC] Bauer/Sparta 603


> >Bauer 603 FM.
>>>  Single 4CX250B driving a pair of P-P 5CX1500A's
>>>
>>>  mike
>>
>>++++++++++++++MIke were they in the same cavity??  How did they tune them?
>>
>>Was this a Bauer or Sparta??  What power level?
>>
>>Dave
>
> I was confused by this one as I remember a 607 1kw with glass tubes and a 
> 603 and 605 ( 3 and 5kw) both with a 4CX250 driving a 3CX3000A7 grounded 
> grid config. A different vintage?
>
> -- 
> Thanks,
>
> Chuck Leavens
> Director of Engineering and I.T.
> WDUQ FM Duquesne University
> Pittsburgh PA 412-396-5508