gated-beam tube

gated-beam tube

[¦gād·əd ¦bēm ‚tüb]
(electronics)
A pentode electron tube having special electrodes that form a sheet-shaped beam of electrons; this beam may be deflected away from the anode by a relatively small voltage applied to a control electrode, thus giving extremely sharp cutoff of anode current.
References in periodicals archive ?
Adler's earlier work was the gated-beam tube which, at the time of its introduction, represented an entirely new concept in the field of vacuum tubes.