Artists
Album Info
Release Date: 1971Label: VEB Deutsche Schallplatten Berlin
Frequency test disk with 2 data sheets.Record plays same tracks & has same performance on both sides.
Explicit mentioned (written down) groove performance in the data sheets:
Record starts with a locked (centering) groove (Zentrierrille).
After each track the record stops in a locked groove (Schlußrille) except tracks A4 & B4 which pass through a lead-out groove and then stopping in a locked groove.
Application: Synchronized speed measurement.
Test frequency: 3150 Hz
VEB Deutsche Schallplatten
Betriebslabor
Berlin, Februar 1971