73 Amateur Radio Today – July 1980
Issue Contents:
The Rites of Spring
– Dayton does it again …… N1AUI WB8BTH KA1HY 30
One Step at a Time: Designing Your Own Ham Gear
– part II …… W4RNL 36
Top-banding the DX-60B
– put a classic rig on a classic band …… WB1ASL 44
Forward into the Past!
– a solid-state restoration project for a vintage BC receiver …… W5JJ 48
ADDSCAN
– now you can be two places at once …… WB9FSC 52
Flat Cells are No Fun!
– build a battery status monitor …… WA3ENK 56
When Plus Goes Minus
– a 555-based negative power supply …… Minchow 58
Depolarize that Power Supply!
– positive or negative grounds won’t bother you anymore …… AA6C 60
Transform Noisy Fluorescents
– “temporary” solution …… W2OLU 64
Early Radio Detectors -a Backward Glance
– pulling rf from the ether was (and is) no easy trick …… WSJJ 66
Sheathe Thyself
– a cheap trick to pull on old rubber duckies …… WA8WTE 70
CB to 10
– part XXVI: the Cobra 132 …… WA1UQC 72
FT-227 Update
– more mods for the Fox-tango set …… WA1GPO 74
“That’s the Way It Was”
…… K2VGV 78
All About Coordinated Universal Time
– GMT has become UTC but the reasons for using it are as valid as ever …… WA7NEV 80
Don’t Be a dB Dummy!
– use a pocket calculator to deal with decibels …… McMahan 82
The Sweet Sounding Probe
…… W7BBX 84
Silence is Golden
– reassemble noisy transformers to eliminate hum …… Powell 91
Welcome to the ’80s
– Radio Shack and Macrotronics make computerized operation a reality …… K3PUR 92
The Multi-media Bench Tester
– this audio/visual device will test your diodes SCRs transistors and more …… WD4KFF 106
CB to 10
– part XXVII : new life for SSB CB rigs …… N6SD 108
Build the ZL Paddle
– brass with class …… ZL2GA 118
Repeater Time-out Warning
– put time on your side (relatively speaking) …… KA6A 120
CB to 10
– part XXVIII double your channels in SSB conversions …… WB2EQG 122
Ham Economics: Selling Used Gear
– be wily …… K5CA 124
A Final Solution
– make life easy for your filaments …… W4ANL 125
The NMX Relay Deceiver
– pull in those 24-v relays with a mere 12 V …… W9NMX 128
Who Needs SSB?
– using your FT-101 on 10m AM …… K6JS 130
Like to See My Etchings?
– chemical technique keeps your property at home …… W6OJJ 132
A Low-life Antenna
– tune in on the life below 500 kHz …… AB5S 134
The Don Nobles Descramblers
-listen to what you’re not supposed to hear …… WA4PYQ 148
73 Amateur Radio Today – July 1980
