Sun Tach Calibration Tester

[scuncio]

Pretty cool, can't say I have ever seen one of these:

Sun Tachometer Calibrator SX-156-1 (http://ebay.to/2sgk4kM)

http://i.ebayimg.com/images/g/74cAAOSwNRdX5EY5/s-l1600.jpg

[mockingbird812]

Cool tool Tony - thanks for posting! I'll bet Jasaon, aka SuperNovaSS, could put this to good use!