[R-390] removing a tube from a tight space

[Jacques Fortin]

Hi Brian,
May I guess that this tube is a 5654/6AK5W on the RF deck ?
This is just a pity that GC Electronics did not make their #5092 tube puller
anymore...

73, Jacques, VE2JFE in Montreal

-----Message d'origine-----
De : r-390-bounces at mailman.qth.net <r-390-bounces at mailman.qth.net> De la
part de brianpepperdine brianpepperdine
Envoyé : 5 janvier 2022 15:30
À : r-390 at mailman.qth.net
Objet : [R-390] removing a tube from a tight space

I have been working on an issue with my 390A and got to a point where I
needed to check if a specific tube was good or not.
Problem was the tube is in a very tight spot and I could not get my fingers
in there to remove it... too tight in the socket.. no room to rock it at bit
too loosen it, get fingers around it sufficiently and strongly enought
and/or extract it. I tried slip-joint pliers applied soft as I could, but
they just slipped off of the tube glass.

Then last night I remembered a rig I had where the previous owner had put
the old type cloth first aid tape on the end of the crystals to be able to
extract them from the octal socket behind hole they were in (see EFJ Ranger,
etc). A little 'wing' of tape to pull on.

So today I took some Gorilla tape, folded it to fit two sides of the tube
and forming a tab I could pull on from above the chassis and the tube was
out in 2 seconds.
A new trick of the trade, for me at least.
I know at one time I think I had seen 'finger trap' things one could pull a
tube out with - long gone to unobtainium status I am sure.

Now to test that tube and hope it IS the tube (and not something more
nefarious) and get a new tube.

73
Brian VE3HI
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