double-track tape recorder
double-track tape recorder[¦dəb·əl ‚trak ′tāp ri‚kȯrd·ər]
A tape recorder with a recording head that covers half the tape width, so two parallel tracks can be recorded on one tape. Also known as dual-track tape recorder; half-track tape recorder.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.