Specifications: Type: Full automatic, 2-speed, quartz lock , direct-drive Platter: Aluminum alloy diecast 310 mm outer diameter Motor: Brushless coreless, slotless "Unitorque" motor; DC motor for arm movement. Speed: 33-13 and 45 rpm Speed Change System: Electronic changeover system Signal-to-Noise Ratio: 78 dB (DIN-B) Wow and Flutter: 0,025% WRMS Speed Accuracy: 0,003% Speed Drift Time : 0,003% (30 sec - 303 min) Temperature : 0,003% (5 - 35°C) Type: Static-balanced, straight Headshell: ADC type Adjustable Force Range: 0 - 3 g / 1 turn of the balance weight (directly readable in 0,1 g steps) Acceptable Cartridge Weight: 4 - 10 g Dimensions (W x H x D): 435 x 365 x 110 mm (17-1/8" x 14-3/8: x 4-5/16") Years : 1980