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Jim Weir

Jim Weir
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Jim Weir is the chief avioniker at RST Engineering. He answers avionics questions in the Internet newsgroup www.pilotsofamerica.com–Maintenance. His technical advisor, Cyndi Weir, got her Masters degree in English and Journalism and keeps Jim on the straight and narrow. Check out their web site at www.rst-engr.com/kitplanes for previous articles and supplements.

Aero ‘lectrics

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Jim Weir offers a solution for how to regain reception when your rubber ducky antenna fails.

Aero ‘lectrics

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Proper sizing and selection of the wire that goes into an aircraft can have a profound effect on the efficacy of the installation.

Aero ‘lectrics

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Transistors don't like excessive heat, but there's a way to beat it: an engineered heat sink.

Aero ‘lectrics

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Jim Weir describes some close encounters with power regulators of the plastic and metal-can kind.

Aero ‘lectrics

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Jim Weir presses the venerable LM317 variable voltage regulator (plus a few other parts) into service as a way to juice up a discharged battery.

Aero ‘lectrics

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How do you condition a battery not in regular use to extend its lifetime? Run it down and then charge it back up. Jim Weir explains how to achieve this with about $10 worth of parts.

Aero ‘lectrics

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The enduring value of the LM386.

Aero ‘lectrics

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Jim Weir wraps up the Back Yard II wind tee project, illumination and all.

Aero ‘lectrics

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Jim Weir describes how he built the airframe structure of his new-and-improved wind tee.

AeroLectrics

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Why we need regulated voltage in our aircraft and how zener diodes, resistors, transistors and semiconductors help us get there.

In Case You Missed It

Rotax engine education

Rotax Training for the 9 Series

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Lockwood Aviation helps you get a full understanding of the four-stroke Rotax.

Editor’s Log

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Have you asked why?

Garmin aera 796: Portable Syn Vision

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Garmin builds on its portable product line with two new navigators: the aera 795 and 796. Paul Bertorelli reviews these synthetic-vision capable units.

Build Your Skills: Fabric

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Most of the hard work is done, and its time for dope. First, pick the right spray outfit, next find a clean, well-ventilated work area and finish your surface preparation, and then you're ready to spray. By Ron Alexander.