[Hallicrafters] HT-32 PTT and runaway in finals

[psturdivant n1ps]

Hi Glen,

TNX for the note.  Yes, I'm familiar with the various 6146 types.

Also, TNX to Al Parker for the mod, which was what I planned to do, but it
was nice to see something in print.

ps
----- Original Message -----
From: "Glen Zook" <gzook at yahoo.com>
To: "psturdivant n1ps" <sturdivant at adelphia.net>; "Hallicrafters List"
<hallicrafters at mailman.qth.net>
Sent: Sunday, December 22, 2002 12:22 PM
Subject: Re: [Hallicrafters] HT-32 PTT and runaway in finals


> You can go with the 6146A as well as the 6146.  The
> only difference between the plain and the "A" version
> is the make up of the heater (filament).  The "A"
> version has what RCA called the "dark heater" which is
> less critical of voltage and is supposedly more
> rugged.  The 6146B is a different tube and can cause
> problems in a lot of the equipment that was designed
> for the 6146 / 6146A series.  In fact, with
> transmitters that run a pair of 6146 tubes, you can
> mix the 6146 and the 6146A.  But, NEVER mix a 6146 or
> 6146A with a 6146B.  That will get you into trouble in
> a hurry!
>
> If you haven't read the article on the 6146 family of
> tubes that was published in Electric Radio a couple of
> years ago, I have both the text and the illustrations
> on both of the websites that appear as part of my
> signature on the bottom of this E-Mail.
>
> The 6146W tubes manufactured after 1964 are usually of
> the 6146B equivalents.  Unfortunately, the military
> did not change the nomenclature when the tubes went
> from the 6146 to the 6146A to the 6146B.
>
> Glen, K9STH
>
>
> --- psturdivant n1ps <sturdivant at adelphia.net> wrote:
>
> This xmitter uses plain 6146 pentodes (and I'm staying
> with the same tube...not the A or B).
>
> =====
> Glen, K9STH
>
> Web sites
>
> http://home.attbi.com/~k9sth
> http://home.attbi.com/~zcomco
>
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