acorn tube meaning
- Noun: acorn tube eykorn t(y)oob
- A small vacuum tube; used at high frequencies
Derived forms: acorn tubes
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- The acorn tubes found widespread use in radios and radar systems.
- The wide-band regenerative receiver used Acorn tubes from RCA, and the receiving antenna had three pairs of dipoles and incorporated lobe switching.
- The receiver was super-regenerative, using type 955 and 956 Acorn tubes in the front end and a 9-MHz IF amplifier.
- The Airborne Group had been experimenting with microwave systems as early as 1938 after discovering that a suitable arrangement of the acorn tubes could be operated at wavelengths as short as 30 cm.
- The prototype had a peak-power of 1 kW, and used a pulse length of 2 to 3 �s with a 10-to 20 kHz PRF . The receiver was a super-heterodyne type using Acorn tubes and a 6 MHz IF stage.