TY  - BOOK
AU  - Jain, Gyan C., ed.
TI  - Practical value equivalents and data
U1  - 621.385 M2 
PY  - 1977///
CY  - Delhi
PB  - Business Promotion
KW  - C. Gyan Jain
KW  - Electron tubes,Electric valves,Electronic circuits,Vacuum-tubes
ER  -