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Digital automotive tach circuit?
Anyone have a simple digital tachometer schematic handy?
I want to put a 4 digit LED tach into my van. Resolution of 50rpm is fine. Fed by the TACH output of a six cylinder GMC on distributor coil. If it isn't much more difficult, I'd like to be able to drive a bar graph of 12 to 16 LEDs as well. |
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