This is a window comparator that supplies a 3-step sequencer of output signals. Pressing S1 discharges C1 and lights Led 1 (and Led 2 briefly). C1 then charges through R4. As charge on C1 passes 3 and 6 volts, leds 2 and 3 glow in sequence. Reduce R2 to balance time delay sequence and reduce delay time. Delays shown will vary with tolerance of C1.

Page last modified on May 12, 2019, at 03:03 PM
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