"REPRODUCER HEAD READS ELECTRICAL IMPULSES THAT ARE PRERECORDED,BY THE RECORD HEAD,ON MAGENTIC TAPE MEDIA; THESE ELECTRONIC SIGNALS ARE READ AT A CONTROLLED SPEED OF 120 IPS; IT IS 7 OR 14 CHANNED REPRODUCE HEAD ASSY,INTERLACED FOR 1 INCH MAGNETIC TAPE; THE REPRODUCE IS MOUNTED ON A SHOE AZIMUTH BASE PLATE & ALLOWS AZIMUTH ADJUSTMENT USING A SCREW"