Direct Drive Turntable System SL-1200

Technics (brand)

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  • Year
  • 1972–1979 ?
  • Category
  • Sound/Video Recorder and/or Player
  • Radiomuseum.org ID
  • 253877

Click on the schematic thumbnail to request the schematic as a free document.

 Technical Specifications

  • Number of Transistors
  • 14
  • Semiconductors
  • Wave bands
  • - without
  • Details
  • Record Player (not changer); Hi-Fi equipment
  • Power type and voltage
  • Alternating Current supply (AC) / 100; 110; 120; 220; 240 Volt
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Direct Drive Turntable System SL-1200 - Technics brand
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 453 x 180 x 366 mm / 17.8 x 7.1 x 14.4 inch
  • Notes

  • A Direct Drive Turntable complete with an S shaped tonearm. High torque motor, low wow and flutter, strobe, pitch control. Heavy aluminium plinth with a perspex dust cover.

    Specification  
    Type Direct drive player system
    Turntable platter Aluminium die-cast; 33 cm (13") diameter
    310 kg-cm2 (105.9 lb-in2) inertial moment.
    1.75 kg (3.86 lb) weight
    Turntable speeds 33⅓ and 45 r.p.m.
    Motor 20 poles (rotor), 15 poles (stator)
    ultra low-speed brushless DC motor
    Speed change method Electronic change
    Variable pitch control Individual adjustment by variable resistor.
    10% adjustment range
    Wow and flutter 0.03% WRMS
    Rumble -50 dB (DIN A) -70 dB (DIN B)
    Build-up time ½ rotation at 33⅓ r.p.m.
    Tonearm  
    Type EPA-120 Direct reading stylus pressure adjustment,
    static-balanced type. Universal head shell,
    anti-skating force device.
    Effective length 220mm
    Overhang 14 mm
    Tracking error angle Within ±2.0°
    Stylus pressure 0 - 4 g

    The Technics SL-120 Direct Drive Turntable System is the same but without a tonearm.

  • Net weight (2.2 lb = 1 kg)
  • 10 kg / 22 lb 0.4 oz (22.026 lb)
  • Mentioned in
  • -- Original-techn. papers.
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Operating Instructions SL-1200 SL-120)
  • Author
  • Model page created by Heiko zur Mühlen. See "Data change" for further contributors.

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