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Help Build A Digital Tachometer

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Thread Starter

cfoek

Joined Jan 16, 2010
8
Hello all i need helo build a Digital Tachometer with a 7 segment Led, i need build it without a PIC IC because i'm from Indonesia and it's hard to get a PIC IC so maybe anyone can help me build a Digital Tachometer / RPM meter signal form a Coil or Spark plug a motorcycle or antenna to a spark cable, can anyone help me with schematic



Thanks For your help
 
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