[Hallicrafters] RE: Hallicrafters digest, Vol 4 #478 - 4 msgs

Tue Mar 2 10:50:43 EST 2004

You need to use a piece of ni-chrome wire and a way to vary the amount of
current you run through it to cut the glass from the tube in the 60's they
sold kits to cut off bottles, maybe you can find one. I just soldered a
crystal socket for a HC-6 crystal to a octal base and used a 100kc crystal
in it-works fine.
Thank You
George R. Griesbach W5GRG
505 River Oaks Rd.
Comfort, Texas 78013
w5grg at comforttexas.net
http://www.comforttexas.net/w5grg

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Subject: Hallicrafters digest, Vol 4 #478 - 4 msgs

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Today's Topics:

   1. Re: Crystal / Tube modification. (Bruce Sugarberg)
   2. Re: Hallicrafters digest, Vol 4 #477 - 11 msgs (Davidradio at aol.com)
   3. Re: Crystal / Tube modification. (Fred Olsen)
   4. Re: Crystal / Tube modification. (Roger Halstead (K8RI))

--__--__--

Message: 1
Date: Mon, 01 Mar 2004 21:11:34 -0500
From: Bruce Sugarberg <bsugarberg at core.com>
To: Waldo Magnuson <magnuson at mac.com>
Cc: hallicrafters at mailman.qth.net
Subject: Re: [Hallicrafters] Crystal / Tube modification.

Hello Skip,

Perhaps it might be easier to use an octal base electrolytic cap.

73, Bruce Sugarberg WA8TNC
==========================
Waldo Magnuson wrote:
> I have a 100 KHz crystal that I would like to mount inside of an octal
> base tube so I can just plug in into the calibration socket on my
> SX-111.  I'd like to remove the glass, place the crystal inside, and
> then re-install the glass envelop.  The question:  Does anyone have a
> neat way of removing the glass (without breaking it)?
> 73,  Skip  W7WGM

--__--__--

Message: 2
From: Davidradio at aol.com
Date: Mon, 1 Mar 2004 22:11:06 EST
To: hallicrafters at mailman.qth.net
Subject: [Hallicrafters] Re: Hallicrafters digest, Vol 4 #477 - 11 msgs

remove old set screws try using an easy out bolt extractor they come in
different sizes
and have left hand thread to remove the screw
you might also try a left handed drill bit and drill it out

all of these are available at mc master carr

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Message: 3
Date: Mon, 01 Mar 2004 21:12:05 -0600
From: Fred Olsen <fwolsen at execpc.com>
Organization: Ottawa Engineering Co. - Metrology and Instrumentation
Services
To: hallicrafters at mailman.qth.net
Subject: Re: [Hallicrafters] Crystal / Tube modification.

Waldo Magnuson wrote:
 > I have a 100 KHz crystal that I would like to mount inside of an octal
 > Does anyone have a neat way of removing the glass (without breaking it)?

Only thing I can think of would be an Act of God.

Fred
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--__--__--

Message: 4
From: "Roger Halstead (K8RI)" <hallicraftersgroup at rogerhalstead.com>
To: <hallicrafters at mailman.qth.net>
Cc: "Waldo Magnuson" <magnuson at mac.com>
Subject: Re: [Hallicrafters] Crystal / Tube modification.
Date: Tue, 2 Mar 2004 01:32:07 -0500

Hi Waldo,

It may be a lot easier than most think.

IF you have some old  (as in no longer good) Octal base tubes put on a pair
of strong leather gloves (for the just-in-case) and then grip the envelope
in one hand and the tube base in the other. Gently try to twist the envelope
in the base.  You can actually twist quite hard if you don't grip too
tightly.

If that doesn't work, just put them in hot, soapy water and keep the bases
submerged as they cool.  Then try to twist out the envelopes.  You might
have to go back to hot water, but it's been my experience that many will
come out with very little effort even without the hot water treatment.  Of
course a lot of them will not budge barring an act of God, dynamite, or a
hammer.

OTOH I've had them come loose just trying to remove what had been a good
tube from the socket.

Roger Halstead (K8RI, EN73 & ARRL Life Member)
N833R, World's Oldest Debonair (S# CD-2)
www.rogerhalstead.com
> I have a 100 KHz crystal that I would like to mount inside of an octal
> base tube so I can just plug in into the calibration socket on my
> SX-111.  I'd like to remove the glass, place the crystal inside, and
> then re-install the glass envelop.  The question:  Does anyone have a
> neat way of removing the glass (without breaking it)?
> 73,  Skip  W7WGM
>
> _______________________________________________
> List Administrator: Duane Fischer, W8DBF **for assistance**
> dfischer at usol.com
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> Hallicrafters Collectors International: http://www.w9wze.org
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> http://mailman.qth.net/mailman/listinfo/hallicrafters
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