Thread: Tachometer
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Old 08-16-2009, 08:11 AM
restapukin restapukin is offline
Motorized Bicycle Elite Member
Join Date: Jul 2009
Location: australia
Posts: 112
Default Re: Tachometer

Got a harmonica? or guitar pitch-pipes?

when an engine is running in the midrange @ 3,300 it will be in-tune with the A note on a musical instrument.....

mmm... but 6,600 revs is also an 'A' is 1,650rpm and 825rpm...

once upon a time you could buy a "tyne tachometer", they looked like a metal dreadlock comb.... you mounted 'em to the chassis somewhere and watched for which comb prong or tyne was vibrating in tune with the motor....
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