Building a Digital Speedo
Martin writes:After scouring the web for digital speedo schematics, I found one, and set about constructing it. After sorting out some teething issues with the electronics, and redesigning parts of the circuit, I built a prototype, and installed it in my Datsun. It functioned perfectly in my Datsun for about 5 years, and was removed when I sold the Datsun.
   Building a Digital Speedo
Full description at martybugs.net

 
 
 

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