[Amps] Weird tubes in an amplifier

[Carl]

QST also rated it as the best tube for a crystal oscillator in the 40's, 
especially the low crystal current.

Carl
KM1H


----- Original Message ----- 
From: "peter chadwick" <g8on at fsmail.net>
To: "William Turner" <dezrat1242 at wildblue.net>; "Amps" <amps at contesting.com>
Sent: Wednesday, January 29, 2014 4:53 AM
Subject: Re: [Amps] Weird tubes in an amplifier


> Before TV, it was used a lot as the video driver in various WW2 radars. 
> The  Tung Sol data sheet issue 1 is February 1942: it was made by RCA, GE 
> and Tung-Sol and possibly KenRad. It was also manufactured in the DDR 
> (Deutsche Demokratischen Republik - Communist East Germany, prefix DM) as 
> the 6AG& and a 6AG7k, but my German is inadequate to figure the 
> difference.
>
> A good tube. I seem to have quite a lot of them - need to find a use for 
> them.
>
> 73
>
> Peter G3RZP
> ========================================
> Message Received: Jan 29 2014, 09:00 AM
> From: "William Turner" <dezrat1242 at wildblue.net>
> To: "Amps" <amps at contesting.com>
> Cc:
> Subject: Re: [Amps] Weird tubes in an amplifier
>
> ORIGINAL MESSAGE:          (may be snipped)
>
> n 1/28/2014 11:22 PM, Fuqua, Bill L wrote:
> >    I also ran 4 6AG7s in grounded grid.
>
> REPLY:
>
> The 6AG7 was a great tube in its day. Had about the highest
> transconductance of any consumer-type tube as I recall. Originally used
> as a video output amplifier in early black and white TVs.
>
> 73, Bill W6WRT
>
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