TY  - BOOK
AU  - Lenk 
TI  - McGraw-Hill circuit encyclopedia and troubleshooting guide 
SN  - 0070376034
U1  - 621.3815 LEN 1993 
PY  - 1993///
CY  - New York
PB  - McGraw Hill
KW  - Electronic circuits
KW  - Testing
N1  - Includes index
ER  -