VACUUM TUBE VARIETY Crossword Clue
VACUUM TUBE VARIETY Crossword Clue
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Crossword Puzzle Infos
The term 'Vacuum Tube Variety' refers to a type of electronic device known as a tetrode, which is composed of four electrodes in a sealed vacuum tube. This type of device was commonly used in the early days of electronics and radio technology, and is still used today in some specialized applications.