TY  - BOOK
AU  - Voorhoeve, N. A. J.
TI  - Low-frequency amplification: a treatise on the technical and scientific principles and the modern  practical use of L.F. amplification
U1  - 621.384 
PY  - 1953///
CY  - Eindhoven
PB  - Philips'  Tehnical  Library
KW  - Amplifiers, Vacoum -- Tube
KW  - Microphoen
ER  -