Category Archives: Electronics Interest

General Electronics Stuff.

Forming a recent NiMH purchase on the Hitec X4 and other computerized chargers.

Ed writes me about properly forming a recent NiMH purchase. Hi Dave, I recently bought one of the FDK Twicell 6.0V 5-cell 2000mah NiMH AA Flat Pack and would like to try it in one of my airplanes . I … Continue reading

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DC Motors and Generators – Learn Something

An old film to bring you up on the basics. Weirdly, physics don’t change.

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How Piezo Gyro’s Work

Excellent video explaining the basics of how gyro’s work.

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Balancing Severely Out of Balance A123 Pack

The following is a recent exchange discussing some charging logic that is impacted often by time-out settings in chargers. Not a bad thing all in all. The same logic can be applied to Lipo packs as well. Hi, Dave: Here’s … Continue reading

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Is Daily Low Self Discharge Rate and Important Factor in RC?

A customer asking about an unusual cell size of ours asks: “Are they are low self discharge?” They are not Eneloops which would be the only NiMH I would classify as Low self discharge. This is almost a silly thing … Continue reading

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Understanding Wire Size

This page intended for reference purposes and will be updated from time to time. When trying to understand wire sizes, it’s important to understand the measurement system. Not all the world uses AWG (American Wire Gauge). Most wire available for … Continue reading

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Crash Investigation, Why did it crash?

Just as in full scale aviation, crashes are often because of a sequence of things going wrong. I received a letter recently asking my opinion on a set of circumstances. At the time of this writing there is no 100% … Continue reading

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High Cell Count Packs

Sonny P. Writes: What is the proper way to charge a 14 cell A123 battery? Sonny, I take from your question that your concerned about the large cell count and not the rules of charging this particular chemistry of pack. … Continue reading

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Ryno Motors

At first I thought this was a fake viral video, however, it’s all true. Imagine a device that can go anywhere you walk, on the sidewalk, on the street, in an elevator or to the mall. Yet on only one … Continue reading

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Tin Whiskers

I’m not a big fan of the gradual banning of lead. Sure, I love kids and all that. However, the enviromentalists take everything too far with what they clothe in “for the greater good” arguments. It’s really an anti-capitalist movement. … Continue reading

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