73 Amateur Radio Today – March 1961 Issue
Issue Contents:
Translating Technical Journals
– You’ll read this one to anyone who will listen …… K5JKX/6 9
Transistorized Grid Dip Oscillator
– Severing the AC umbilical cord with a transistor …… W3KET 10
Curing Ignition Interference
– Step-by-step assassination of the noisy car gremlins …… W8UCG 13
Superregenrative Receivers
– Ten rules for getting good results from a super-regen illustrated …… W5WGF 14
Decreasing Debugging Time
– How to get things back east when they go west.. In a hurry …… K5JKX/6 16
Top Loaded Whip
– Why not make your own mobile whip? …… W2IHW 18
CW Transmission with Teletype Equipment
– Simple conversion of RTTY or that hated CW identification by TT tape …… Pafenberg 20
All Band Antenna
– You’ve been waiting for someone to adapt that Log Periodic Antenna …… K5JKX/6 22
Double Your Power Supply Voltage
– Not difficult with a couple silicon rectifiers …… W4API 24
Impedances of Surplus Equipment
– Input and output impedances for most popular surplus gear ….. Pafenberg 25
Patch Patch
– Quick method of hooking your phone patch in and out of the telephone line …… K2DHA 26
432 MHz Transistorized Converter
– Good night! How high will they go with transistors? Crystal controlled too …… W3HIX 27
Two Meter Transmitter
– Slight modification of the 6M rig from October issue of 73 …… K8NIC/5 29
Squawk Box
– Transistorized loudspeaker amplifier …… K5JKX/6 30
Up Front
– Rather thorough look at receiver front ends our big technical article …… Staff 32
Don’t Bug Me Dad
– Our cover artist also writes. Instructions for new bug owners …… W6NKE 38
Varicap Tuning Device
– Helps the blind ham to tune up his rig… Or anyone else for that matter …… W7CSD 42
Noise Clipper Semiconductor Style
– Tiny clipper for insertion in car radios including transistor sets …… W2IHW 43
Working 80 Meter Phone DX
– WAC in one night when you know where to listen …… W1FRR 44
DC Transistorized Meter Amplifier
– Get amazing sensitivity out of normal meters with this amplifier …… K6EAW 46
Motorola Test Set
– Ham-banding the old Motorola mobile transceivers is popular this helps …… W9HKA 48
Propagation Charts for March
– What time to where when…probably …… K2IGY 54
Names Sines and Handles
– Why “YB” calls himself “YB” …… W7OE 56
Save Learn Have Fun
– It really is cheaper to build than buy …… W8VVD 62
How To File Your QSO’s
– More ideas on card files for contacts …… OH2YV 68
73 Amateur Radio Today – March 1961
