73 Amateur Radio Today November – 1978 Issue
Issue Contents:
Electro Sculpture
– be a radio Rodin …… VP2DN 32
The SUMSUE Method
– determining code speeds …accurately …… K1RH 36
The UART Gear Shifter
– for multi-speed RTTY …… KB8CE 38
Silence Groaning Refrigerators
– check your house wiring …… K4KI 42
Bargain Preamp
– muliple uses for this one …… W5REZ 44
Murphy’s Masterpiece
– the lost weekend …… WA6PPZ 48
How About Some Holm Shack Safety?
– don’t be a statistic …… W7FGD 52
Head ‘Em Off at the (High) Pass
– improved filter design …… WB6GNM 56
555 Basics- And More!
– get to know this versatile IC …… WB4CEO 60
Educate Yourself
– an almost painless method …… WB1AHL 64
Novel RTTY Autostart
– we could write a book …… K2OAW 68
The Easiest Offset Ever
– a treat for 2 …… K4GOK 74
The Chip Switch
– a digital troubleshootmg triumph …… WB2QEL 78
Automatic Repeater Offsets
– it’s all so logical …… N2YK/wB2NYK 82
CB to 10
– part XIII: the Lafayette Telsat SSB-75 …… DF1SP/w2 86
The History of Ham Radio
– part VII …… W9CI 90
Build An FM Tweaker
– simple deviation meter …… W3QVZ 94
Another Surplus Treasure
– convert the R-648/aRR-41 receiver …… McClellean 96
Pffft -Zapped Again!
– front-end protect your test equipment …… WA6THG/kH6JSA 100
One Meter-many Jobs
– an introduction to shunts …… Fletcher 102
Who Uses All Those Frequencies?
– the competition for radio spectrum …… WB6JPI WB6HDB 104
MDS: What Is It?
– and what’s in it for you …… Edwards 106
FM Calibration on a Budget
– why pay more? …… W9HDA 108
Build the $80 Wonder
– a deluxe frequency counter/standard …… W3HB 112
Add-a-scanner
– for any synthesized rig …… N2YK/wB2NYK 116
CB to 10
– part XIV: a Realistic PLL rig …… K0QLC 120
No More Excuses!
– get on RTTY with this simple demodulator …… WB4MBL 124
The Junk Box Station
– ham ingenuity does it again …… WA4DQN 126
R-X Bridge + Calculator = Vswr
– antenna tuning without QRM …… WB5ILK 130
High Seas Adventure-ham Style
– part II …… WA6FEI 136
“Look What Followed Me Home!
– a PET of your very own …… Lilie 142
A Hex on Your 8223
– space-saving magic …… Schneider 148
The Micro Maestro!
…… K6EW 150
SSTV Meets SWTPC: Part 1
– micro-enhanced pictures …… K6AEP 168
Squelchifying Cheap Receivers
– junk-box project …… WA1PDY 182
Try FM On 29.6 MHz
– no it’s not a CB channel …… WA7WYF 184
Build the Brute
– unique heavy-duty power supply …… N9KV 186
The Multifunction Scan Can
– another IC-225 goodie …… W1IBI W1HZH 192
Be A Weather Genius
– eavesdrop on GOES …… WB8DQT 198
Happiness is a DMM Kit
– Sabtromcs makes a gem …… W7AAY 208
Vintage Receiver Mods
– new life or hamfest bargains …… W2OLU 210
Deep Dark Secrets of the TR-7500
– exposing hidden talents …… WB9SEQ 212
The TTY Lifesaver
– saves money too …… Sergo 216
Build the “Version Three”
– simple RTTY TU does it all …… Colby 218
Heath’s GR-88 Gets Religion!
– convert it to 2 meters …… W2AOO 222
Four Terminals Are Better Than Three
– using the new voltage regulators …… W1SNN 226
CB to 10
– part XV: a Realistic HT …… K5UKH 238
The Circuit Board Aquarium
– no fish story …… WB9QZE 240
Build A Decent Dummy
– no oil no light bulbs no hassle …… K4IPV 244
Who Needs Transistors?
– you do! …… W5JJ 250
A Junk Box Load Simulator
– for battery testing …… W5JJ 252
Blockbuster RTTY Article!
– Selcal and W-r-u on a budget …… W9IF 254
Automatic Autopatch
– safeguard your health …… W6GJS 266
Using Bargain Muffin Fans
– a keep-cool idea …… K4SE 276
Loran-c as a Frequency Standard
– is 3 cycles a week good enough? …… WA4EID 278
Ham Help!
– a telephone aid for the blind …… N4AL 286
An Experimenter’s Delight
– a lab bench with style …… WA1WLW 288
73 Amateur Radio Today November – 1978
