73 Amateur Radio Today November – 1971 Issue
Issue Contents:
A Big Three Element Beam
– Three elements on 75m – ZOWIE! …… W4AXE 13
Remote Tune Your Groundplane
– This is a real screwed up antenna …… W2AOO 17
How to Build an Economast for Under $50
– Towerless is powerless in working DX …… WB2FBF 21
A Gain Vertical Antenna for 2 Meter FM
– 10 dB = 10 X power transmit and receive! …… K9STH 25
Photographing Radio Equipment
– Maybe we can have better pictures in 73? …… W2EEY 29
Biasing the Transistor Audio Amplifier
– Who among us is without bias? …… W5JJ 37
The Split Site Repeater
– Greatly improves repeater coverage …… K6MVH 39
The Art of T-hunting
– Have you been missing this fun? …… WB6IQS 45
An Ultra-simple Selective Audio Filter
– Ideal for the CW op moonbounce etc …… W8RHR 49
Transistor/diode File Box Tester
– Better lay in a supply of file boxes …… WB4ITN 51
Crystal Tester
– Two transistor go/no go tester …… K6VCI 55
A Compact Kilowatt for Six Meters
– Think of the TVI records you can set with this! …… K1ZJH 57
The 3-4-6 Quad
– “The first stateside signal of the day …… K2MNJ 63
Let’s Revise the Morse Code
– Isn’t it really about time? …… W7OXD 79
A Pie-Net for Transistor Finals
– Specifications for all bands 160 – 6m …… W5PAG 85
Changing the 75S3 into a Better CW Performer
– Using a $58 Collins mechanical filter …… OA4KF 93
Why Coax?
– Twin lead is cheaper and has less loss …… G3BID 95
Communications Yardsticks
– dB dBm dBmc and other erotica …… Lenkurt 101
Metalphoto Your Nameplate
– This will really fake out the vjsitors …… W6BLZ 107
Amateur Radio and the Disabled
– Great hobby for the shut-in …… WA2CGA 109
Solid State Microwaves for Amateurs
– Crystal control on 2300 MHz …… K1CLL 113
Those Funny Looking Cards
– A Washington lobby? Who needs it! …… WA1GFJ 123
73 Amateur Radio Today November – 1971 Issue
