Don't get glass cleaner or even water NEAR the tube if you have any desire of
saving the nomenclature that is printed on the envelope. Just use a dry cloth
and carefully wipe the envelope. That works in the vast percentage of times.
Glen, K9STH
Website: http://k9sth.com
--- On Thu, 6/17/10, Ron Youvan <ka4inm@tampabay.rr.com> wrote:
Are the tubes all glass or do they have any metal or ceramic portions?
Glass cleaner should clean all glass tubes. I clean silver plated copper and
brass with "Tarnex" silver cleaner and I wash it off with hot water.
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