[Boatanchors] Has anyone ever cut the glass top off a miniature tube to re-use the base?

[Emil Dular]

Never tried to cut the glass on miniature tubes. Like you I have salvaged 
octal bases to make connectors.  But for you puropse, how about an 
old-fashioned socket saver? Would not that do what you want?  This place 
says they got 'em. 
http://www.caryelectronic.com/index.php/9pin-tube-socket-saver-fr-12ax7-12au7-ecc82-ecc83-amp.html

Emil WD4SCZ


----- Original Message ----- 
From: "Bob Groh" <bob.groh at gmail.com>
To: "boatanchor" <boatanchors at puck.nether.net>; 
<Boatanchors at mailman.qth.net>
Sent: Friday, 19 August, 2016 00:41
Subject: [Boatanchors] Has anyone ever cut the glass top off a miniature 
tube to re-use the base?


> Yes, this is another stab at finding a source for 7 and 9 pin miniature
> tube plugs.  Has anyone ever 'de-vacuumed' a mniature tube, cut off the 
> top
> using a glass cutter and then soldered to the pins?
>
> I think I could get the glass off (leaving, say, a 1/4" rim on the bottom)
> and cut off the tube guts. But I have my doubts about whether or not the
> leads coming up would take solder.  I rather imagine the leads were spot
> welded originally and that the leads may not be solderable.
>
> Any thoughts?  Anybody done it?
>
> 73
> Bob Groh, WA2CKY
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