TY  - BOOK
AU  - Valley, George E.
AU  - Wallman, Henry
TI  - Vacuum tube amplifiers
U1  - 621.384132 VAC 1948 
PY  - 1948///
CY  - New York
PB  - McGraw-Hill Book Company
KW  - Amplifiers, Vacuum
KW  - Tube
KW  - Electronic apparatus and appliances
N1  - İndeks var
ER  -