73 Amateur Radio September 1970
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Look through the 73 Amateur Radio September 1970 magazine index for information needed for amateur radio projects and reviews.
73 Amateur Radio September 1970 | |
| Page# |
Integrated Circuit CW ID Generator | 16 |
Automatic identification for your station | |
W7PUG | |
Six Volts From Twelve Volts | 26 |
Six buck solid state voltage dropper | |
K3GSV | |
The Indicating Oscillator | 29 |
Another dipper circuit, 1-400 MHz | |
KH6AF | |
Tuning VHF Receivers | 32 |
Clever infinite attenuator and oscillator unit | |
K1CLL | |
Code Practice a la Baby Talk | 35 |
Everybody's doing it | |
W9PXA | |
Using Those Bargain ICs | 38 |
Three testers will test most ICs you will encounter | |
WA2IKL | |
Repeater Antenna Separation | 45 |
One of the easiest ways to improve repeater range | |
K6MVH | |
Diode Stacks | 54 |
Replacing those high-power rectifier tubes | |
W2BDG | |
Deluxe Receiver Gain Control | 56 |
Using one transistor and a zener | |
VU2JN | |
A New Approach to Communications Equipment | 60 |
A call for manufacturer standardization | |
K9ALD | |
Reed Relays for Coaxial Switching | 64 |
Work very well for UHF low-power applications | |
W7CRV | |
File Box Resistance Decade | 66 |
First in a series of file box test gear | |
WB4ITN | |
The DyComm VHF-FM RF Amplifier | 70 |
Transistorized, 15 watts out | |
Staff | |
General Class License Study Course | 74 |
Part II, Alternating Current | |
Staff | |
What Really Happened to Hamdom? | 82 |
The horrible truth about CB | |
W9HBF | |
Beer Can Two-Meter Coaxial Antenna | 86 |
Drink you way to a good signal | |
WA0RWQ/6 | |
Converting 24V Relays to 115 VAC | 88 |
using a couple of cheap diodes | |
Douglas | |
Versatile 2m MOSFET Converter | 90 |
Low noise, high gain, ultra stable | |
WB6YVT | |