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73 Amateur Radio April 1970


<< 73 Amateur Radio Magazine Directory


Listed below is the Table of Contents for the 73 Amateur Radio April 1970 magazine. If there are any issues missing and you would like to contribute, please contact us to make finding good articles easier.

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Look through the 73 Amateur Radio April 1970 magazine index for information needed for amateur radio projects and reviews.

73 Amateur Radio April 1970
TitleAuthors 
Page#
A Noise Blanker That Works17
As opposed to that crummy one in Brand X that doesn't work. And can be added to your present receiver easily
W8RHR
Hot Carrier Diode Mixer Converter20
This is not an April Fool article
WA6NCT
Examining FM Repeater Operation28
History of repeaters, ARRL involvement, and legal problems
WB6DJT
A Repeater Controller34
Tone generator, timer, identifier, the lot
WA4YND
Understanding the Carrier Operated Repeater41
Some of them take a good deal of understanding
K6MVH
Evaluation: Standard 2M FM 12 Channel Receiver46
Okay
W6QGN
7/8 Wave Mobile Antenna for 2 Meters50
Why have a puny signal when you can have a mediocre signal
W2EUP
How Do Ham Stores Decide Their Trade-In Figures?55
$200 for your S-38?
W2CFP
Beryllia- The Lethal Refractory58
Worse than cyclamates
WB2PAP
Getting Your Extra Class License, Part XV62
Spurious radiation is covered
Staff
A Work Session On The Wichita Repeater78
If anything can go wrong
W0DKU
In expensive Semiconductors for the Ham81
Giant Motorola ad that we paid for
WA7KRE
Renovating Surplus Meters84
Making new scales for meters, calibrating, and like that
WA0ABI
A Bias Regulator for Linears86
Simple gadget makes Class B linears practical
ZL2ANG
High Performance I-F and AGC System89
Particularly for CW and SSB
ZL2BDB
Single Sideband on the All-Wave Radio94
One transistor BFO, and no connections
W7CSD
Vacuum Tube Load Box96
Invaluable for testing power supplies. Invaluable
Ashe
Repeater Directory99
Special book length feature with photos, coverage maps, and access data
Staff
A Word About Repeaters100
A special featurette
WB2AEB
The Fine Points Of FM Operation121
Getting on frequency and other fine points
WB2AEB
How To Megger Your Antenna125
It's not dirty
W2EEY
HTX-242 Ham Radio
Popular Callsign Lookups
for this month:

W2RZ
K2US
AB4TX
N8UKC
WE4V

Stewart Warner R113
Stewart Warner 301-A
738 Silver Marshall
IR Widget
Reading Morse Code on your PC
FCC Datbase Lookup
Pixie Transceiver
PSK31 Circuit Interface
The Iambic Mouse
MaxTrac 900 Ham Conversion
GE MVP Ham Conversion
Weather Station
ICOM OPC-478 Interface
PIC to Network
Morse Code Decoder Circuit