TY  - BOOK
ED  - Engineering Industry Training Board.
TI  - electronic maintenance I for engineering craftsmen
T2  - Instruction manual, module J.4
U1  - 621.381 E57e 
PY  - 1983///, ©1969
CY  - Watford 
PB  -  Engineering Industry Training Board 
KW  -  Electronic apparatus and appliances
KW  - Maintenance and repair
KW  - Handbooks, manuals, etc
KW  - Electronic apparatus and appliances
ER  -