TY  - BOOK
AU  - Beck,A.H.W.
TI  - Velocity-modulated thermionic tubes ..
T2  - Modern radio technique
AV  - TK7872.V3 B4 1948
PY  - 1948///
CY  - Cambridge [Eng.]
PB  - University Press
KW  - Vacuum-tubes
N1  - Bibliography: p. [177]
ER  -