Hello,
I have a Champion Level II; I recently found on some slow piano tracks speed seemed a little bit low.
I've replaced the belt and I've oiled the axis.
I've bought a stroboscopic disc and the Dr Feickert's App for my Iphone with the disc playing a 3150 Hz.
I need help to understand the values I've found:
Mean Frequency: 3154.5 Hz
WOW according to DIN IEC 386
using method 2 sigma: +/- 0.30%
using method dynamic: +/- 0.19%
Raw Frequency:
max deviation (relative): -0.71%/+0.76%
max deviation (absolute): -22.4Hz/+23.9 Hz
Lowpass filtered Frequency:
max deviation (relative): -0.06%/+0.03%
max deviation (absolute): -1.8Hz/+0.8Hz
Thanks in advance.
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