73 Amateur Radio Today – June 1977
Issue Contents:
Two Meter Scanner
– for the IC-230 …… K3JML 46
Try the Mini-timer
– prevents HT timeouts …… WA2UMY 48
High Frequency Utility Converter
– handy test rig for any shack …… K4DHC 50
RTTY Scratchpad Memory
– after this try a UART …… VE3GSP 54
Build This CW Filter
– darned good …… VE3EXA 55
The London Bus Tuner
– effective for short antennas …… Staff 56
The W1BB Story
– a visit with the king of 160 …… WB1ASL 58
Ten Watts on 2
– it’s possible with this rock crusher! …… WA6NCX/1 64
UHF SWR Indicator
– 1296 anyone? …… W8DMR 68
At Last! A 10m Band Plan
– requires a CB radio …… WA4MFT 71
Event Timer With Memory
– double check gravitational laws …… WA3VPZ 72
Sheet Metal Brake
– build microwave components …… W6QIR 76
The Easy Ammeter
– current news …… VE3FEZ 78
Try a Conduit Vertical
– low angles are great for DX …… WB9DVV 80
The IC-pC Connection
– convenient and cheap …… WA6OAA 81
An 82523 PROM Programmer!
– now build those projects using one! …… WB2CZL 82
Practical PS. Design
– do it right this time …… WA6JMM 84
Yaesu FRG-7 Impressions
– take note swl fans! …… W5JJ 96
SSTV Meets the SWTP 6800
– modulate video with a micro …… K6AEP 98
Aim Your Antenna With a Micro
– beam heading BASIC program …… W4PWF WA2TMT/4 108
Regulated Nicad Charger
– don’t cook ’em! …… K7HKL 117
Complete Repeater Control System
– all that’s missing is the computer …… W4VGZ 118
Transmission Line Primer
– in case you don’t know everything …… Murphy 124
Things Remembered
– ever heard of an 807? ……W8LUX 126
Digital Bargain Hunting
– tips on surplus computer goodies …… W8KBC 148
More Channels for the IC-22S
– using dip switches …… WA4VAF 152
Try a Scandie-talkie
– build a scanning HT …… WA6NCX/1 156
Current-saver Counter Display
– multiplex those LED’s! …… K7YGP 174
Instant QSO Recall System
– gaining peer respect …… W4GKF 177
New PC Techniques Unveiled!
– dig out your old chemicals …… WB5DEP 178
How Do You Use ICs?
– part VII …… WA2SUT/nNN0ZVB 184
Uncle Sam’s Surplus List
– and how to get on it …… 192
73 Amateur Radio Today – June 1977
