TY  - BOOK
ED  - Institution of Electrical Engineers and British Standards Institution
TI  - Use of electronic valves
U1  - 621.38151 
CY  - London
PB  - British Standards Institution
KW  - Electronic circuits
KW  - Valves
N1  - Pt.1 - General. Pt.2 - Receiving valves cathode-ray tubes and rectifiers (including thyratrons). 1954. Pt.3 - Photocells transmitting valves and cold-cathide gas-filled valves. 1956
ER  -