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Old 03-03-2008, 11:30 AM   #6 (permalink)
trebuchet03
MechE
 
Join Date: Dec 2007
Location: Orlando
Posts: 1,148

The Wagen - '00 Jetta GLS
90 day: 32.72 mpg (US)
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Have a laptop?

A diode clamp, resistor and headphone jack can be used as for measuring duty cycle... But, it's not real time (you have to go back, zoom in and look at the waveforms).
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