[Hallicrafters] 5894 Tube for the HA-6 Transverter

[David C. Hallam]

Thanks to everyone one who replied.  It appears what I have is a 7854.  I
found a picture of one on the net and it looks like the tube I have.

Now all I have to do is to build a power supply for my HA-6.

David
KC2JD/4

> -----Original Message-----
> From: jeremy-ca [mailto:km1h at jeremy.mv.com]
> Sent: Sunday, August 26, 2007 6:37 PM
> To: dhallam at rapidsys.com; Hallicrafters Reflector
> Subject: Re: [Hallicrafters] 5894 Tube for the HA-6 Transverter
>
>
> 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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>
>
>
>
>