Amps
[Top] [All Lists]

[AMPS] SB1000 parasite question for Tom and Rich+

To: <amps@contesting.com>
Subject: [AMPS] SB1000 parasite question for Tom and Rich+
From: 2@vc.net (measures)
Date: Thu, 3 Aug 2000 18:52:35 -0700
>In a message dated 08/03/2000 03:36:33 PM Pacific Daylight Time, 2@vc.net 
>writes:
>
><<  The fix that seems to work is:   reduce VHF 
> amplification.   >>
>Rich it seems to me that one way to reduce vhf gain would be not to use 
>tubes 
>( very expensive ones) that have max. ratings to 500 mhz  on frequencies of 
>30 mhz or below. if it will amplify at 200 mhz it should also 
>oscillate.....yes??   HANK
>
True enough, Hank.  The 3-500Z apparently oscillates c. 150MHz in the 
SB-1000, so tube choice is less limited than one might think.  .  .  
According to unsubstantiated rumour, the 8877 can oscillate from 100MHz 
to over 500MHz.  

cheers















zZZ

-  Rich..., 805.386.3734, 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>