TY  - BOOK
AU  - 
AU  - Markus, N. S., Ed.
TI  - Data and circuits of radio receiver and amplifier valves
U1  - 621.384 
PY  - 1952///
CY  - Eindhoven, Holland
PB  - Philips Technical Library
KW  - Radio -- Receivers And Reception
N1  - Second Supplement
ER  -