73 Amateur Radio Today – June 1994

73 Amateur Radio Today – June 1994

Issue Contents:

MRP4 Solar Panel Control Circuit

– Build this easy charge controller for your sun-powered station! …… WB8VGE 10

Surplus Solar: Is It for You?

– An affordable alternate backup power system …… N7MGT 18

Used Batteries for Ham Stations

– Another way to save money on power systems …… N7MGT 22

All About Those Lightweight HF Ham Whips

– Easy mobile operating from 160 to 10 …… WB6NOA 28

Mobile-oN Alarm Timer

– This little circuit could save your car’s battery …… KA8PHO 32

The Morse Messenger

– A tiny inexpensive CW IDer for foxhunters balloonists and tightfisted hams …… KF7VS 46

Midland Corporation’s Models 18-300 18-325 and 18-330B Mobile Antennas

– Sturdy whips for VHF and UHF operation …… KT2B 36

The Rayovac Renewal Battery

– A ham’s dream cell …… N7MGT 40

73 Amateur Radio Today – June 1994

Return to 73 Amateur Radio Today Index


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