turntable, servo-controlled: 8 3/8 in x 15 1/2 in x 18 in; 21.2725 cm x 39.37 cm x 45.72 cm
Phonograph; Audio Devices
A phonograph turntable with a linear-tracking tone arm. Wooden housing. Label on back reads: "RABCO 3969 / Patent No. 2915315"; printed on back: "R / G / L"; label on top of tone arm: " RABCO SL - 8E"; plate on turntable base: "RABCO ST-4"; printed on base: " Off / On"; plate on front: "RABCO". Tone arm counter-weight is numbered 1 through 4. Patent #2915315 issued 1 December 1959 to Jacob Rabinow for a Servo Arm for Phonograph Pickups. This unit may be a prototype or experimental unit since it exhibits features not seen on commercially sold ST-4 units. No cover was received with this unit.