> Is an outer package for transmitting tubes that has a
> moderate vacuum
> applied, an effective way to preserve tubes from damage
> due to slow leakage
> around the Plate/electrode seals? Can you put your 3-500Z
> or other tubes in
> storage in a jar, and using some home type of vacuum
> source, moderately
> evacuate/seal the container, and get extended life from
> the tube inside?
The pressure change wouldn't do anything significant, but
keeping the seals of a glass tube moisture free would
certainly help a lot. Large glass tubes can have shorter
life when they are stored in a moist environment. Perhaps a
good solution would be to put them in a refrigerator next to
the welding rods.
73 Tom
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