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In Reply to: maybe brain surgery is right posted by Bruce from DC on April 29, 2007 at 09:42:34:
if one manages to get an incandescent light to work so you can read the strobe, it is running off the same AC power as your turntable. since you are running off a DC motor, it may not affect you, but folks using an AC synchronous motor could benefit from a strobe that runs off an independent, calibrated 60Hz source.The KAB battery-powered strobe does this.
If one's strobe is "off" (essentially blinking at the wrong frequency -- not exactly 60Hz), then it will be impossible to make accurate adjustments with a strobe disc calibrated for exactly 60Hz.
Also, some strobe discs have a tendency to get warped. Slight warps will affect what one sees, too.
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Follow Ups
- one additional point on the KAB strobe - analog guy 09:51:50 04/29/07 (0)