12V 5MHz COUNTER


Posted on Feb 7, 2014

Portable counter is designed with low-power logic to minimize battery drain, yet provides good performance.Since most of milliwatt power drain is taken by digital readout, circuit blanks out LED display when there is no input signal. Time base divides 1-MHz crystal oscillator frequency down to desired enable time, up to tOs, using 31/2 MC14518 dual decade co..


12V 5MHz COUNTER
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