Old vacuum tube

87 Down6 lettersSunday, 14 October 2018

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Keywords
vacuumtube
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About this clue

This clue appeared in the NYT Crossword on Sunday, 14 October 2018. The answer TRIODE is a 6-letter entry.

This answer appears frequently in crosswords. View TRIODE answer history →

Frequently asked questions

What is the answer to "Old vacuum tube"?
TRIODE
How many letters is the answer to "Old vacuum tube"?
The answer has 6 letters.
When was this clue last seen?
This clue last appeared in the NYT Crossword crossword on .
Has this crossword clue appeared before?
Yes. Variations of this clue have appeared 3 other times.

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