73 Amateur Radio Today – February 1970
Issue Contents:
Fascinating Fundamentals
– The Terrible Jar at Leyden …… W2FEZ 14
18 in. Dipole on 15 Meters
– February Fool article? Heh heh! …… K9LGH 24
High Performance Converter for 6
– 73 drags its heels into the 70’s with a tube …… WA9HES 30
From Breadboard to Printed Circuit – The Easy Way
– And it is easy for once …… K1AOB 36
The Camper: Mobile and Portable
– Enradioifying the VW bus …… WA9EHE 40
So You Think You Have Troubles?
– Cutting blind ham’s antennas for fun …… W1EMV 43
Frequency Synthesis – The Modern Way
– Special book-length feature for FM fiends …… W2EUP 44
Encoding and Decoding in FM Repeaters Part I
– Encoders for Subaudible Tone-burst or Whistle-on Use …… W6ZCL 72
Encoding and Decoding in FM Repeaters Part II
– Tone Decoder for Remote Switching Applications …… K6MVH 80
Encoding and Decoding in FM Repeaters Part III
– Setting Up the Tone-burst System …… W6TEE 82
How to Visit Foreign Countries
– Using ham radio to make travel funner …… W2NSD 84
The DX-35 Revisited
– Exciting development for chirp haters …… W2AOO 86
Panoramic Receiver for VHF
– For 2 meter busybodies …… I1SL0 88
Variable-impedance Mobile Mount
– Out damned reactance! …… W1EMV 96
Lossy Transmission lines
– A shorty short …… KH6IJ/1 97
Extra Class Study Course Part 13
– RTTY FSK filters and other such trivia …… Staff 98
New Linear IC’s for the Ham
– Cheap-new-hot-have fun …… WA4KRE 115
The Glop Will Get You If You Don’t Watch Out!
– Watch out! …… W2ELU 126
DX as seen by
– Cartoon feature …… W6EIF 130
The Micromitter
– World’s cheapest rig …… WA3GGH 131
A Simple Integrated Circuit Q-multiplier
– Makes the CW band ten times wider …… W2EEY 134
Quick Stop and Reversing for Antenna Rotors
– Whipping antenna whip …… PY2AUC 137
73 Amateur Radio Today – February 1970
