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Nestor Jacovides (5B4AHZ)

The Incredible Endurance of AMSAT-OSCAR 7: A Ham Radio Satellite That Defies Time
The Incredible Endurance of AMSAT-OSCAR 7: A Ham Radio Satellite That Defies Time
Satellite communication
Teen Innovator Sparks Bright Ideas with Hand-Powered Flashlight!
Teen Innovator Sparks Bright Ideas with Hand-Powered Flashlight!
Batteries and chargers Electronics Power supplies Practical builds