73 Amateur Radio Today – January 1967
Issue Contents:
An IC Crystal Calibrator
– 10 and 100 kHz markers output; costs $13 …… KlDCK 6
Transistor Converter Notes
– Some new developments in Frank’s popular VHF converters …… W6AJF 10
A kW with the Amperex 6KG6
– A very straight forward SSB grounded-grid linear …… W7CSD 14
FET Transconductance Tester
– A simple yet effective checker; a scoop …… W1DTY 16
Climbing the Novice Laddar: Part 2
– Joe starts a homebrew project …… W7OE 20
The QRZ Machine
– Something for the DXers …… W6MUR 26
Ham TV Converter
– Three transistors are all you need …… PA0BVO 30
A Silect Six Meter Converter
– It uses a FET RF amp and etched circuit construction …… W5SJN 32
Autostart RTTY Gear
– A generator and converter for VHF use …… W6AYZ 34
VOM Transistor Tester
– It uses about five components …… Thorpe 38
Low-power Attenuator for Ham Use
– They’re cheap yet useful to 450 MHz …… WB6AIG WA6RDZ 40
A FET S-meter
– Another good use for inexpensive FETs …… W6GXN 42
Unwanted Feedback
– A lucid discussion from one of 73’s top authors …… W2DXH 46
Equipment Protection
– Are you taking adequate steps to protect your gear? …… K5JKX 50
Etched Circuit UHF Dipmeters
– 130-480 MHz; very clever …… W1JJL 54
Hamming VK9-style
– Like to go DXpeditioning on a far island? …… VK9TG 58
SINPO and SINPFEMO
– Another approach to signal reporting …… DJ0HZ 62
432 MHz Antenna Filter
– A coaxial filter for the 70 cm band …… W6AJF 64
Six Meter Final Amplifier
– A useful 100 watt amplifier for low-power rigs …… K9EID 65
73 Reviews the Drake 2-NT and 2-c
– A good 100 watt CW transmitter and hybrid receiver …… W1DTY 66
A Simple Voltage Calibrator
– Jim tells why your meters aren’t perfect and how to live with them …… W2DXH 70
The Link
– A signal grabber for two …… W6HGX 78
Techniques in Tone Signaling
– Tones can be very useful for hams …… WB6MOC K6YTY 82
The Vanguard 501 Camera
– It’s an excellent quality inexpensive TV camera …… WA1CCH 86
The Shackcom
– A simple ham intercom …… W8MQW 87
Gus: Part 19
– Is a flat Coke better than none? …… W4BPD 88
A Little About Noise
– A technical article for those who really want to understand noise …… K6ZGQ 92
The Knight-kit KG-640 YOM
– A fine taut-band VOM at a good price …… W1DTY 102
The Motorola HEP-line
– Good available inexpensive transistors at the corner radio store …… WA1CCH 104
The Knight-kit TR-107
– Knight’s new two meter transceiver looks good …… KlRA 105
What’s New For You?
– 73’s new monthly technical column …… WA1CCH 109
73 Amateur Radio Today – January 1967
