Loose valve bases
Back in the mists of time when I had a Marconi comms receiver a number of the valves were loose on their (octal) bases.
At the time I used model aeroplane cement.
Is this of a different make to that of Superglue.
Araldite goes soft with heat, but there are various sorts.
What is the safest option to secure a valve that is loose on its base?
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