73 Amateur Radio Today – February 1974
Issue Contents:
Understanding the Slow Scan Monitor
– It’s awfully simple …really …… K4TWJ 20
Integrated Circuit Audio Amplifiers
– IC Audio Amplifiers Handbookette …… Kenney 25
A Simple Sweep Generator for Monitor Scopes
– Very very simple …… WA2HNJ 32
New Regulations (1938)
– A dated article …… K2PMM/f8 34
Quick ‘n Easy 15 or 20 Meter Vertical
– Using el cheapo TV masts …… KH6HDM 37
Telephone Control and Monitor System
– Operate your rig by phone …… K1CLL 41
Modifications to Heathkit GC-l005 Digital Readout Clock
– You’re out of luck if your day has only 23 hrs and 56 mins in it …… WA0KHV 50
Cook a Better Circuit Board
– Don’t forget to use a dash of cardamom …… WB4MYL 52
A Variable Q Audio Filter
– For CW …… WA4DCN 54
Another Blown Fuse Indicator for Low Voltage
– Using an LED …… K6HKB/l 57
Building with Ten-tec Modules
– A 20/40m QRP transmitter using modules …… WB2WYO 60
Simple Audio Preamp
– How to increase your intelligibility and live a fuller and more useful life …… W6JDD 69
An Integrated Circuit SWL Receiver
– Hey here’s an easy and fun project! …… W1GOG 71
432’er Final Assembly on the Air
– At last! …… K1CLL 77
Transistor Keying Circuit
– You’ll never use relays again …… K6OLG 90
Low Cost Seven Segment Readout
– Interfaced with Nixie driver …… WA2AOO 95
73 Amateur Radio Today – February 1974
