[Hallicrafters] 5894 Tube for the HA-6 Transverter

[Greg]

I looked at a tube seller's page and he has 5894/5894a/ 5894b listed 
together. A 5895 tube is listed separately.
I use a Amperex NOS 5894 in my Eldico SSB100f hf transmitter without any 
problems. Does about 60 w pep output. I wonder what's up with the third 
anode connection on yours? Any possiblity it is not an anode connection but 
perhaps a socket do dad or heat conductor. Got a picture?
Tnx
Greg
WA7LYO
Kinston NC
----- 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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