Works even better if you put the tube in the freezer or freezing compartment of
the refrigerator. Take it out and IMMEDIATELY breathe on the tube. If you
wait for more than a few seconds the envelope will warm up and you have to
start over.
Glen, K9STH
Website: http://k9sth.com
--- On Thu, 6/17/10, Patrick Barthelow <apolloeme@live.com> wrote:
If you have lost the tube markings on the tube envelope, try this which I
remember from years ago. Put the tube in the refrigerator, cool it down, then
bring it into a warm room temp environment. There will moisture condensing on
the glass envelope, which sometimes leaves a readable outline of the tube
numbers, which are otherwise no longer readable.
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