[Hallicrafters] 5894 Tube for the HA-6 Transverter

[jeremy-ca]

The 7854 has 68W of anode dissapation versus 40W for the 5894 and is a 
direct substitute. I have one in my HA-6 and it loafs along at 100W out.

Carl
KM1H


----- Original Message ----- 
From: "David C. Hallam" <dhallam at rapidsys.com>
To: "Hallicrafters Reflector" <hallicrafters at mailman.qth.net>
Sent: Sunday, August 26, 2007 5:55 PM
Subject: [Hallicrafters] 5894 Tube for the HA-6 Transverter


> Is there anyone who knows about differences in the 5894 tube used in the
> HA-6 6 meter transverter?  I picked up two tubes at a hamfest yesterday.
> One is marked 5894A and the other has no identification.  I have tried all
> the usual tricks to raise numbers with no success.  The unmarked tube
> appears identical to the 5894A with two exceptions.
>
> The anode surface has three radiating fins instead of two.
> The anode connector pins on top are about 60% larger in diameter.
>
> In other respects the tubes are the same; the glass envelope is the same 
> and
> the base pins are the same.
>
> Is this tube just an improved version of the 5894A or what?
>
> David
> KC2JD/4
>
>
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