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wow & flutter

  1. C

    Turntable Strobe dot wobbles

    I have a 1970's Technics SL-220 that is working probably good enough but the strobe dots move back and forth a very small amount. The wow measures +/-0.12 % RMS as measured with a RPM WOW phone app. I've replaced the belt twice and without significant change in the small movement. The movement...
  2. Carterkent04

    Sony PS-X50 wow/flutter

    I recently received a ps-x50 and ever since i got it it has had terrible wow/flutter. I checked power supply voltage per the service manual, set the magnetic sensor correctly, and speed pots but nothing is doing any good. The motor is also a little loud. Has a consistent "rumble." Is the motor...
  3. John Tulett

    ReVox B790 Turntable Erratic Speed Control - Hints & Lessons Learned

    (To conform with file uploading limits a reduced size PDF file containing the figures is attached). Purpose * To share hints and lessons learned from fixing my B790 turntable's speed fluctuations. * This report complements the earlier report, "ReVox B790 Turntable - Motor Servicing Hints &...
    • John Tulett
    • Thread
    • b790 motor issues powersupply revox speed control speed inconsistency wow flutter turntable advice wow & flutter
    • Replies: 0
    • Forum: Turntables
  4. MisterDK

    How to reduce turntable WOW..?

    I’m presently getting an old idler drive turntable sorted and using a phone app to check RPM and WOW. On this table, speed is OK but I think WOW seems a little high and I’d like to see it lower. I haven’t played with platter bearing oil viscosity yet (and this has a large bearing). I’m assuming...
    • MisterDK
    • Thread
    • turntable wow wow & flutter wow and flutter
    • Replies: 20
    • Forum: Turntables
  5. S

    Wow & Flutter on Revox B77

    I am currently refurbishing a Revox B77 and I have noticed that there seems to be some Wow & Flutter especially on sustained piano and oboe. I have cleaned the heads and all the tape path, but I am not sure where too look next. Any suggestions or pointers would be most welcome. Simoncs
    • simoncs
    • Thread
    • b77 revox wow & flutter
    • Replies: 6
    • Forum: Tape
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