Amps
[Top] [All Lists]

[AMPS] tuning capacitor & insulator

To: <amps@contesting.com>
Subject: [AMPS] tuning capacitor & insulator
From: km1h@juno.com (km1h@juno.com)
Date: Sat, 19 Dec 1998 12:49:04 -0500


On Sat, 19 Dec 1998 07:47:30 -0800 Rich Measures <measures@vc.net>
writes:
>>Since you believe what is published Rich ( when it is convenient ) 
>how
>>come you cant  agree with published Eimac results? 
>
>?  Eimac said that linearity improved when the anode supply voltage 
>was 
>decreased from 2000v to 1500v?

Yes, thats what several of us have said the past few days.... Its right
in the full spec sheet.


>
>>I also tend to disbelieve claims that I can not verify with HP 
>quality
>>test equipment. You make a lot of claims that I can not verify here 
>with
>>a similar amp. 
>>The consensus from several continents appears to agree that the
>>7580/4CX250R is dirty at higher Ep. Why do you always want to play 
>word
>>games and ignore some basic facts supported by measurements?
>
>?  When alleged measurements do not agree with what one sees on the 
>constant-current curves, my guess it is that problem is not in Eimac's 
>
>curves.  
> -  Have you tested a 4cx250R with 400v on the screen and 2000v on the 
>
>anode?   

YES, in a RIW/ARCOS  2M amp and also with Svetlana 4CX400A's. I will also
have a Johnson 6n2 Thunderbolt in here next month that has 250R's
installed. I will be upgrading to Ian's screen supply and adapting to
4CX400A's. I can run tests with 250B's, 250R's, 400A's  before, after
with any variety.




>>Please, dont repeat the old canned drivel...try something new for a
>>change. You are beginning to sound like ur old buddy ...
>
>?  If you are speaking about Mr. Rauch, he seemed to get moderately 
>perturbed by the information I obtained from Eimac's constant-current 
>curves when he was trying to convince us that high-Mu triodes could be 
>
>successfully operated as linear amplifiers in Class AB1/grid-driven 
>service.  
>>
>-  later, Carl


C'est la vie Rich.

73  Carl  KM1H



>
>Rich...
>
>R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures  
>
>
>--
>FAQ on WWW:               http://www.contesting.com/ampfaq.html
>Submissions:              amps@contesting.com
>Administrative requests:  amps-REQUEST@contesting.com
>Problems:                 owner-amps@contesting.com
>Search:                   http://www.contesting.com/km9p/search.htm
>
>

___________________________________________________________________
You don't need to buy Internet access to use free Internet e-mail.
Get completely free e-mail from Juno at http://www.juno.com/getjuno.html
or call Juno at (800) 654-JUNO [654-5866]

--
FAQ on WWW:               http://www.contesting.com/ampfaq.html
Submissions:              amps@contesting.com
Administrative requests:  amps-REQUEST@contesting.com
Problems:                 owner-amps@contesting.com
Search:                   http://www.contesting.com/km9p/search.htm


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