Category Archives: Components

A Better Voltage Regulator

There’s a switched mode, drop-in replacement for the LM7805. Pass it on. Continue reading

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The EBCs of BJTs

Bipolar Junction transistors (BJTs — NPN and PNP types) are inexpensive, reliable, relatively easy to use, and very useful. Here’s how they are used. Continue reading

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Components: Servos

Servo motors are useful devices. Here’s how to drive them using a microcontroller or similar device. Continue reading

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Components: LEDs

LEDs are useful devices. They require a bit more thought to use than indicator lamps, but are very versatile and efficient. Continue reading

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