TY  - BOOK
AU  - WITTS (Alfred T)
TI  - Superheterodyne receiver Ed 6
U1  - 535/168 
PY  - 1950///
CY  - London
PB  - Sir Isaac Pitman & Sons Ltd.
KW  - Superhetrodyne
KW  - Superheterodyne
KW  - receiver
KW  - Ed
KW  - 6
ER  -