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W-11 Boredom Fighter

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In Case You Missed it

The Creative Homebuilder

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Hardened steel mandrels for close-quarters dimple dies.

Product Review: Spidertracks

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As we move away from 121.5 MHz emergency locator transmitters, alternatives in the realm of personal locator beacons and trackers continue to flourish. Spidertracks of New Zealand is one of the newest. By Marc Cook.

Franklin vs. Edison et al. and Marconi

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A word we use rather flippantly when perusing electronic circuitry—ground.

Aero ‘lectrics

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Columnist Jim Weir comes up with what he thinks is the optimal design for getting power from the 12-volt aircraft battery to the LED without wasting any.