Circuit Schematic Mini Emergency Light using Transistor BD140

Timer. - This is electronic circuit schematic of Mini Emergency Light using Transistor BD140 like in Figure 1 below. In this circuit schem...

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Circuit Schematic Accurate Electronic Stopwatch using 1MHz Crystal

Timer. - This is electronic circuit schematic of Accurate Electronic Stopwatch using 1MHz Crystal like in Figure 1 below. In this circuit ...

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