Wayne Parham Messages: 18783 Registered: January 2001
Illuminati (33rd Degree)
Audio-Technica is a good brand, in my opinion. Well known for cartridges and microphones.
Pitch-lock is undoubtedly a speed regulating mechanism. The platter should spin at precisely 33-1/3 RPM (or 45 RPM, if set) and this is set manually or automatically using a time base. Examples of time base are line frequency (60Hz, but not very constant) or quartz crystal oscillation (very constant).
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