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Clue: "Vacuum tube filler"
"Vacuum tube filler" is a New York Times crossword puzzle clue that we have seen 4 times.
Possible answer
ARGON
Likely related crossword puzzle clues
Inert gas
Laser gas
Number 18
It's inert
Light bulb gas
Radio tube gas
Gas in a vacuum tube
Most common inert gas
Most common noble gas
<--, on the periodic table
Part of the atmosphere
Fluorescent bulb filler
Fluorescent lamp filler
Its atomic number is 18
About 1% of the atmosphere
Show more
Recent usage in crossword puzzles
New York Times -
October 7, 2007
New York Times -
July 8, 2004
New York Times -
November 16, 1997
New York Times -
January 3, 1995