Amps
[Top] [All Lists]

[AMPS] New tube in a SB230

To: <amps@contesting.com>
Subject: [AMPS] New tube in a SB230
From: 2@vc.net (2)
Date: Wed, 26 Sep 2001 14:36:20 -0700
>
>Is there space for the larger anode of the 3CX800A7?  If so, seems a wise
>choice (run cooler, last longer...)
>
With either an 8874 or a 3cx800, you will probably have to move the 
existing socket location.  With the latter, you will need to also add a 
smallish 6v transformer in series with the stock 6v heater winding.  I 
would use the Eimac grid-grounding collett.

later
>
>"Each success only buys an admission ticket to a more difficult problem." --
>Henry Kissinger
>
>> -----Original Message-----
>> From:        2 [SMTP:2@vc.net]
>> Sent:        Wednesday, September 26, 2001 11:06 AM
>> To:  Steve Katz; 'Tore Sandström'    ; 'amps@contesting.com'         
>> Subject:     RE: [AMPS] New tube in a SB230
>> 
>> >
>> >8874 with little pressurized compartment installed and blower attached?
>> >Haven't done it, but it always seemed the space was available and Heath
>> used
>> >the conduction cooled tube just because that was a cool thing to do
>> (pardon
>> >the pun).
>> >
>> I would go with a 3cx800A7.  
>> - cheers
>> 
>> 
>> 
>> >"Each success only buys an admission ticket to a more difficult problem"
>> --
>> >Henry Kissinger
>> >
>> >> -----Original Message-----
>> >> From:     Tore Sandström [SMTP:tore.sandstrom@comtech-data.se]
>> >> Sent:     Wednesday, September 26, 2001 9:51 AM
>> >> To:       amps@contesting.com
>> >> Subject:  [AMPS] New tube in a SB230
>> >> 
>> >> Hello all!
>> >> I have a SB230 with a broken 8873. That tube is impossible to get I so
>> >> wunder tube you guys out there put in instead?
>> >> Who has done a smart replacement to tell us other?
>> >> A time ago a saw a SB230 on ebuy with a 3CX800A7 instead, but that is
>> also
>> >> a very expensive tube.
>> >> Regards
>> >> Tore Sandstrom SM7CBS
>> >
>> >--
>> >FAQ on WWW:               http://www.contesting.com/FAQ/amps
>> >Submissions:              amps@contesting.com
>> >Administrative requests:  amps-REQUEST@contesting.com
>> >Problems:                 owner-amps@contesting.com
>> >
>> >
>> 
>> 
>> -  R. L. Measures, 805.386.3734, AG6K, www.vcnet.com/measures.  
>> end
>
>--
>FAQ on WWW:               http://www.contesting.com/FAQ/amps
>Submissions:              amps@contesting.com
>Administrative requests:  amps-REQUEST@contesting.com
>Problems:                 owner-amps@contesting.com
>
>


-  R. L. Measures, 805.386.3734, AG6K, www.vcnet.com/measures.  
end


--
FAQ on WWW:               http://www.contesting.com/FAQ/amps
Submissions:              amps@contesting.com
Administrative requests:  amps-REQUEST@contesting.com
Problems:                 owner-amps@contesting.com


<Prev in Thread] Current Thread [Next in Thread>