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MMD > Archives > July 1998 > 1998.07.02 > 13Prev  Next


Liquid in Jukebox Bubble Tubes
By Mike Knudsen

According to my archives of old Netnews postings on Christmas lights,
the _new_ bubble lights use methylene chloride, something you don't
want to breathe much of.  My understanding -- and that's all it is --
is that older lights use alcohol; which type of alcohol I couldn't
say.  In any case, inside the bubble tube is a vacuum except for the
vapors of the liquid, to encourage boiling at low temperatures.

There's quite a story -- I forget where I read it -- about how
Wurlitzer "borrowed" the bubbler concept from a salesman who
demonstrated a bubbling sign for advertising purposes.

Any jukebox restoration dealer should know what's in those long bubble
tubes.  They're still being made.

Mike Knudsen


(Message sent Thu 2 Jul 1998, 16:28:59 GMT, from time zone GMT-0500.)

Key Words in Subject:  Bubble, Jukebox, Liquid, Tubes

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