73 Amateur Radio Today – January 1991
Issue Contents:
High Precision Frequency Standard
– Use your TV set as a laboratory standard …… Johnson 9
Scrounger’s Guide to Recycled Electronics
– Discover a gold mine of inexpensive parts …… W5FG 22
An HF/vHF/uHF Marker Generator
– Get on frequency for less than $10 …… K84ZGC 27
A Parallel Port I/o Board
– Control your world! …… VE6BGL 29
The Three-terminal Regulator
– Multiple uses in one package …… N9RF 40
Rose Parade Mobile
– A high-tech HF remote station …… WA6TWF 46
Low-cost Mag-mount
– Plus a complete mobile antenna system …… AD5X 55
MFJ SWR Analyzers
– MFJ-20 7 HF and 208 VHF portables …… WA4BLC 19
The WB2OPA LogMaster
– A versatile HF logging program for the IBM PC …… N8AHA WB8ELK 34
Kenwood’s TM-941A Tri-band FM Transceiver
– Three for the price of one …… N0IVN 36
The EINEC Antenna Modeling Program
– Let your computer design your next antenna …… WA4BLC 52
73 Amateur Radio Today – January 1991
