TY  - BOOK
AU  - Witts,Alfred Thomas
TI  - The superheterodyne receiver: its development, theory and modern practice,
U1  - 621.384 
PY  - 1944///
CY  - London
PB  - Sir I. Pitman & sons, ltd.
KW  - Radio
KW  - Receivers and reception
KW  - MCE
ER  -