Abstract: A cam assembly is disclosed which is used for the selection of different track positions for a magnetic tape head in a magnetic tape player/recorder. The tape track position of a magnetic tape head is determined by the position of a cam follower member which is selectively positioned with respect to a reference surface by selectively positioning a number of different diameter ball bearings between the cam follower member and the reference surface. Specifically, a solenoid actuated armature causes the linear movement of pawl members which in turn rotate a ratchet wheel member. The ratchet wheel member forms part of a cam apparatus that includes four ball bearings of different diameters. Sequential rotation of the ratchet member selectively positions ball bearings of different diameters between a non-rotatable reference surface and the cam follower member.

Abstract: An assembly for adjusting the azimuth (rotational) orientation of a magnetic tape head with respect to the chassis of a tape player is disclosed. A planar portion of a first plate is welded to the top side of a tape head and an adjustment screw is threaded through a bent portion of this plate. A planar portion of a resilient second plate is bonded to the bottom side of the tape head and a hollow cylindrical member is mounted to a bent portion of the second plate such that the resiliency of the second plate biases the hollow cylinder toward the adjustment screw. The hollow cylinder is slidably mounted on a guide post which is rigidly mounted to the chassis of a tape player. By means of the adjustment screw the angular disposition of the tape head with respect to the hollow cylinder, and thereby with respect to the tape player chassis, is altered.

Abstract: A capstan housing assembly in a tape player device using an exchangeable cartridge includes a chassis having a cartridge support member having a support wall and first and second sidewalls, and a support plate precisely positioned with respect to the cartridge support member to define a cartridge receiving chamber. The support wall of the cartridge support member includes an opening therein adapted to receive a lower capstan bearing and the support plate includes an opening therein adapted to receive an upper capstan bearing. The support plate is mounted on the cartridge support member such that the lower and upper capstan bearings support and hold the capstan shaft in a predetermined position with respect to the cartridge receiving chamber.

Abstract: A capstan housing assembly in a tape player device using an exchangeable cartridge includes a chassis having a cartridge support member having a support wall and first and second sidewalls, and a support plate precisely positioned with respect to the cartridge support member to define a cartridge receiving chamber. The support wall of the cartridge support member includes an opening therein adapted to receive a lower capstan bearing and the support plate includes an opening therein adapted to receive an upper capstan bearing. The support plate is mounted on the cartridge support member such that the lower and upper capstan bearings support and hold the capstan shaft in a predetermined position with respect to the cartridge receiving chamber.