Two-element tubes

This crossword clue is for the definition: Two-element tubes.
it’s A 17 letters crossword puzzle definition.
Next time, when searching for online help with your puzzle, try using the search term “Two-element tubes crossword” or “Two-element tubes crossword clue”. The possible answerss for Two-element tubes are listed below.

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Possible Answers: DIODES.

Last seen on: LA Times Crossword 5 Nov 2017, Sunday