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73 Amateur Radio March 1971


<< 73 Amateur Radio Magazine Directory


Listed below is the Table of Contents for the 73 Amateur Radio March 1971 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 March 1971 magazine index for information needed for amateur radio projects and reviews.

73 Amateur Radio March 1971
TitleAuthors 
Page#
Integrated Circuit Audio Filter12
Clean up that dirty audio with a filter
W2EEY
Integrated Circuit Six Meter Converter16
Not for bigots with six unconverted meters
WB4KMB
Trap-type Vertical Antennas18
Adding stubs for two meters. FM article
W2EEY
Resurrecting Granddaddy22
Fun with a 1925 parametric amplifier
K6BIJ
Digital Counters26
Five digit
W0LMD
Identifying Surplus Electronic Equipment37
Military marking system
W6DDB
The Horizontal-Output Linear40
A $50 kilowatt amplifier?
W2AOO
DX America First43
DXpedition to Maine
K1OXK
Phone Patch: No Cost, No Wires49
Phone patching is illegal in Rwanda. Too bad
WA2EAW
Mt. Snow: To the Repeater54
On Skis - Our cover feature. An FM article
K6MVH
Repeater Audio Mixer57
Another great FM article
W1ELU
Something New in PC Construction61
Building with scissors
WA1EJU
Switching Remote Linears65
Like in the car
W0HFK
Digital RTTY Accessories66
Regenerative repeater, stunt box, speed conversion
K5ZBA
The Coathanger Groundplane72
Two meters (FM!)
K6MVH
General Class Study Course74
Staff
Reading 5 Code RTTY in Binary93
Just what you've been waiting for
WB2MPZ
Petitions to FCC - 220 MHz proposals118
Staff
HTX-242 Ham Radio
Popular Callsign Lookups
for this month:

KB2KYC
N9DAX
W9CSX
K2US
N7MXQ

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