[Hallicrafters] PL-172's

[Carl]

Different amp, different tubes.


----- Original Message ----- 
From: "Jon Springer" <springertool at wyoming.com>
To: "'Brian Harris'" <cosmophone at yahoo.com>
Cc: <hallicrafters at mailman.qth.net>
Sent: Thursday, November 11, 2010 7:16 PM
Subject: Re: [Hallicrafters] PL-172's


Hi, Brian ... I am fixing to start firing up an HT-33A ... need to
investigate the leaking oil under it first... would be glad to work with u
in the near future.  I'm sure I will be needing a spare PL-172.  Incidently,
I read about these tubes recently: that the glass ones are leakers, but, the
ceramic ones are much better ... don't have any experience with them myself.

Regards,  Jon KØFOP
307 857 3069
Riverton, Wyoming



-----Original Message-----
From: hallicrafters-bounces at mailman.qth.net
[mailto:hallicrafters-bounces at mailman.qth.net] On Behalf Of Brian Harris
Sent: Thursday, November 11, 2010 3:34 PM
To: Hallicrafters; Boat Anchors
Subject: [Hallicrafters] PL-172's

Today I acquired three PL-172's and one PL-172 socket.  One tube has a glass

seal.  The other two have ceramic seals and are also marked 8295.  All are
made
by Penta.  One of the 8295's looks as if it's new.  The other looks very
good
(with very little discoloration).  The one with the glass seal has been used
as
there uniform discoloration (but no black).  These came from a SK who had
them
as spares for his amplifier which is long gone.

I would like to either sell these tubes and the socket (preferred) or build
an
amplifier (not preferred) but I need to know if they are any good.  As I
have no
way to test them, I am looking for someone who has an HT-33B that would be
willing to test them.  It would be great if that person lived close to the
Dallas-Ft.Worth area.

If someone can test them for me I will give them the glass sealed tube
provided
it's good or some quickly diminishing in value U.S. dollars for their
services.

Please don't make me make a test jig.

Brian Harris, WA5UEK
phone 214-763-5977
email cosmophone at yahoo.com
website www.myhamshack.com/wa5uek


When they call the roll in the Senate, the Senators do not know whether to
answer "present" or "not guilty."  Theodore Roosevelt




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