73 Amateur Radio Today – May 1966
Issue Contents:
New VHF Circuits for Transistors
– 6 meter converter and filter from Frank Jones …… W6AJF 6
RF Applications of N-channel FETs
– Very important article; a 73 scoop of course …… WA5KLY 12
Size is Impressive
– A little humor to brighten the day …… K3VMZ 14
FSK Principles
– How to transmit RTTY on HF …… W4EHU 16
VHF-uHF Panoramic Reception
– Now you can watch that empty band …… W5NPD 20
UHF Grid Dipper
– Excellent dipper even if it does use tubes …… WA6BSO 24
PY2USA
– Fostering good relations through ham radio …… PY2CUB 32
W2USA/tV
– Good publicity for hamming at the ’39 World’s Fair …… W4DKJ 34
12 Volts on 6 Meters
– Ed doesn’t like semiconductors I guess …… K8ADG 38
432 the Easy Way
– Cheep too …… WB2FYB 40
Dealing with the Information Explosion
– In a blood thirsty way …… W2DXH 42
Regulated DC-to-dC Converter
– Put in 6 to 24 volts and get out 12! …… W6GXN 46
How Much Capacitance for that SSB rig?
– Beat the high cost of microfarads …… W4VRV 50
The Mini-supply
– A simple inexpensive regulated power supply …… WA6BSO 54
Origin of the Code
– An interesting sketch of history …… W2AAA 58
Understanding AVC
– A very thorough article …… K5JKX 66
Why Work the World Now?
– Complete rules of 73’s new WTW DX certificate …… W4BPD 78
A Private Listening Speaker
– For mobiling …… K5BEC 80
A Solid-state Product Detector
– The semiconductor answer to pentagrid mixers …… W6GXN 84
HW-22 on CW
– Takes about 10 minutes too …… W7UXP 88
Transistor Power Supply
– Simple quick and cheap …… WA2TOV 90
Ham with a Heart
– K7SML a multiple sclerosis victim …… K7NZA 92
Fuses
– What fuse to use where …… W9ZZH 95
Confession
– A SF thriller …… W0HMK 96
Low-voltage Gonset Super Six
– Throw away that HV power supply …… W0BMW 100
HX-50 on MARS
– Very simple procedure …… K9CZI 104
Improving Der Kleiner Keyer
– A few correct ions and improvements …… W4BRS 106
More Contacts from Within
– Simple indoor antennas for high frequency use …… K3RXK 108
For Those Who Have Given Up Code
– Encouragement for novices and technicians …… WA8BJK 110
73 Amateur Radio Today – May 1966
