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Posts tagged Power Inputs

Good Site to find Circuit Board Schematics or Pin-Out diagrams for IC chips?

Seraph asked: Is there a place on line where you can go to find circuit board schematics for things, like a database or something. There have been many times when I take apart something, like a TV for example, and cant find where the power inputs go to replace a pulled out wire. I know […]

Motorcyle Alarm – The circuit board and switches must be protected from the elements.

Any number of normally open switches may be used. Fit the mercury switches so that they close when the steering is moved or when the bike is lifted off its side-stand or pushed forward off its centre-stand. Use micro-switches to protect removable panels and the lids of panniers etc. While at least one switch remains […]

Making TV Pattern Generator with ZNA234E

Making TV Pattern Generator with ZNA234E This Circuit uses the ZNA234E IC which makes available all the waveforms necessary to produce the crosshatch, test patterns on a television screen. The composite video output can be injected directly into the video input of a receiver or used to drive a modulator for connection to the aerial […]

Audio Amplifier Circuit using TDA7231

Audio Amplifier Circuit using TDA7231

Create HFE Tester Circuit Diagram

Create HFE Tester Circuit Diagram using BC560, TIP142 Create HFE Tester Circuit Diagram

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