Turnable database with TimeLine

Lewm, I'm not sure if the MS motor is actually auto correcting anything, but you're right about the belt affecting the sound. Set the tension even slightly too loose and it will lose control over the platter. This isn't much of a problem if you use a rubber belt but critical with thread and even with their SF-1 belt. The speed will still read correctly using a strobe but the platter is slipping undetectably. This results in a lackluster sound, vague image and loose bass, this is why you sometimes see people switching to a different motor using rubber belts. The belt tension will make or break the sound of MS tables.

Peterayer, I had several KAB strobe units in the past and noticed sample to to sample variations and locking at a different speed from my AC strobes, so I sopped using them. Only recently we got the battery operated Ortofon units in and again we found the KAB strobes a bit off.

Disclaimer- Ortofon dealer.

Lewm,

"a tad slow on 45. We checked his judgement using the KAB strobe, with and without the stylus drag. The KAB showed without doubt that the Lenco was in fact running a tad FAST, not slow, at 45"

The problem is with the KAB strobe and not your friend, it locks in slightly lower than the correct speed. Test it against better units and you'll see. for yourself that its off.

Peterayer, At one point I had 3 KAB strobes that I was using and I use and saw some slight variations of frequency setting with each one. I use an industrial grade voltage/frequency converter to control the speed and since I had AC strobes, I didn't much of it before and the variations were small nothing to be concerned about. I only got the Ortofon unit in recently and compared to the KAB it locks the speed very slightly higher. Then I compared both to the EMT 927's strobe and the Lock speed of the Air Force One and they both fell in between the lock speeds of KAB which is slower and the Ortofon which is faster but dead on with my AC strobes. The speed variations are very small and unlike your friend I don't have perfect pitch and any of those 3 speed settings work for me.