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Popular pages
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Engineering & physics
Articles on engineering and physics
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Formulas - trigonometry, algebra
useful formulas
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Schmitt trigger design
Designing a transistor-based Schmitt trigger
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About John Hearfield
Brief details of the author and a quick summary of what the site is about
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Energy storage in capacitors
Calculation of energy storage in a capacitor
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RC networks - impedance and frequency
Impedance - frequency curves in resistor-capacitor networks