[BC] Bauer/Sparta 603

[Chuck Leavens]

Well, the grounded Grid version is actually a good box. Just runs and 
runs. Used as a driver for the 25kw PA and called the 625A

I cannot say enough good things about Paul Gregg. Great guy.


>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
>
>
>
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-- 
Thanks,

Chuck Leavens
Director of Engineering and I.T.
WDUQ FM Duquesne University
Pittsburgh PA 412-396-5508