Assertion: tape recorder's head | /r/CapableOf | write speed
Facets:
Source sentences:
text: The four head pieces (quad) are switched successively so that recorded stripes cross the video portion (most of the tape middle, audio is on one edge, control track is on the other) so that head to tape write speed is well in excess of the 15-inch-per-second (38 cm/s) physical motion.