[Hallicrafters] Help with vacuum tube search

Carl km1h at jeremy.mv.com
Tue Apr 14 19:36:43 EDT 2009


The 6J6 has a common cathode.

The dual triode cascode TV progression peaked with the 6DJ8/6922. Lots 
of these in old Tek scopes. The 6ES8 is another hot one.

Carl
KM1H


----- Original Message ----- 
From: <radioart at frontiernet.net>
To: "Waldo Magnuson" <magnuson at mac.com>
Cc: <hallicrafters at mailman.qth.net>
Sent: Tuesday, April 14, 2009 1:12 PM
Subject: Re: [Hallicrafters] Help with vacuum tube search


> The DB23 from RME and the Cosmophone-35 use the 6J6 which was 
> developed as a low noise VHF/UHF dual triode....  I'm sure there are 
> others as good if not better but those work pretty good....
>
> Dennis Petrich
> Amateur Radio Station K0EOO
> Lakeville Minnesota USA
> k0eoo at arrl.net
> 952-898-1082
>
> ----- Original Message -----
> From: "Waldo Magnuson" <magnuson at mac.com>
> To: hallicrafters at mailman.qth.net
> Cc: "Waldo Magnuson" <magnuson at mac.com>
> Sent: Tuesday, April 14, 2009 12:05:20 PM GMT -06:00 US/Canada Central
> Subject: [Hallicrafters] Help with vacuum tube search
>
> 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
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