If you've been following along with the 555 timer series, this video describes how to derive the formula that describes the timing of the circuit.
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This DI presents a 555 multivibrator circuit that relies on an inductor instead of the usual capacitor to set the timing characteristics of
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The 555 timer is an integrated circuit capable of operating either as an oscillator (astable mode) The Math: Given Ra, Rb, and C, find Frequency, etc.
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