TY  - BOOK
AU  - Say,M.G.
TI  - Rotating amplifiers: the amplidyne, metadyne, magnicon and magnavolt and their use in control systems
U1  - 621.389 
PY  - 1954///
CY  - London
PB  - George Newnes
KW  - Rotating amplifiers
KW  - Electric controllers
KW  - Electric generators
KW  - Direct current
N1  - Includes index
ER  -