[Hallicrafters] Help with vacuum tube search

[Deane McIntyre]

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On 14-Apr-09, at 11:05 AM, Waldo Magnuson wrote:

> *This message was transferred with a trial version of CommuniGate 
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> Hi,  Maybe you can save me some time researching.  I'm looking for a
> twin-triode, low-noise vacuum tube for building a RF amplifier.  I
> have been looking at the article "The S-9er" and thought I would try
> the same but in a cascode configuration and see how it works in my
> SX-28A.  What tubes would you consider?  Thanks.
> 73,  Skip  W7WGM
>

I remember that the 6BQ7/6BZ7 was the tube of choice for cascode VHF  
amps
for many years, was a very popular tube for that application in  
1950's TV
sets and VHF converters for 6M .... might have been a better tube later
however

73,

Deane McIntyre VE6BPO