[Hallicrafters] Re: [Boatanchors] simple transmitter using the 1625 tube

[Carl]

----- Original Message ----- 
From: "Al Klase" <al at ar88.net>
To: "n0alo" <n0alo at kans.com>
Cc: "boatanchor" <boatanchors at mailman.qth.net>; "Homebuilt" 
<homebuilttuberadios at yahoogroups.com>; "Hallicrafters" 
<hallicrafters at mailman.qth.net>; "Regenrec" <regenrx at yahoogroups.com>
Sent: Sunday, November 16, 2008 10:09 PM
Subject: Re: [Boatanchors] simple transmitter using the 1625 tube


> Keep in mine this is fundamentally an 807 with a 12-volt heater and 
> the suppressor grid brought out separately rather than being tied to 
> the cathode.
>
> Al

The suppressor is tied to the cathode inside the glass on most 1625's 
and inside the base on a few. Those latter ones were modified for GG 
operation in the late 50's.

You may be thinking of the837.

Carl
KM1H


>
> n0alo wrote:
>> Know this is a bit off topic but does anyone know of plans/build it 
>> articles using
>> the 1625 tube for a simple one tube crystal controlled low power cw
>> transmitter?
>> Many thanks
>> Lynn
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>
> -- 
> Al Klase - N3FRQ
> Jersey City, NJ
> http://www.skywaves.ar88.net/
>
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