TY  - BOOK
AU  - Windred, George.
TI  - The gas-filled triode
T2  - Electronic engineering technical monograph
AV  - TK7872.V3 W5
U1  - 545.7 
PY  - 1946///
CY  - London
PB  - Hulton press, ltd.
KW  - Triodes
N1  - Includes Bibliography : p. 73-74
ER  -