TY  - BOOK
AU  - Penfold,R.A.
TI  - Electronics build and learn
U1  - 621.381 21
PY  - 1990///
CY  - New Delhi
PB  - BPB publications
KW  - Electronic apparatus and appliances
KW  - Amateurs' manuals
KW  - Workshops
KW  - Equipment and supplies
N1  - Includes index.
ER  -