About Amplifiers

This page contains an archive of all entries posted to Gadget Freak in the Amplifiers category. They are listed from oldest to newest.

Alarms is the previous category.

Audio amplifiers is the next category.

Many more can be found on the main index page or by looking through the archives.

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Amplifiers Archives

November 15, 2007

Diagnose setup and hold times

Designers working on analog circuits in the lab often need accurate voltage sources to test the operation of op amps and other components.

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November 30, 2007

Gary liked to pump up the volume

Ever turned on your car stereo and BOOM! the woofers unexpectedly jumped out for one filling-loosening bass note? Just great, you've just been diagnosed with turn-on thump — either due to an amp that never had a muting circuit or one that's failed open circuit. Either way, OUCH! To fix this problem, Gary built a circuit that connects externally to any car audio amplifier and keeps his speakers completely disconnected from his amplifier until it's been completely powered up. Plus, it also works with a mis-matched set of amplifiers.

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Continue reading "Gary liked to pump up the volume" »