RCA MMT135 Dimensia Linear Tracking Turntable

Dimensia MTT135 Phonograph

Notes:

• The Front-load MTT135, from 1985, complemented the MTT130 Top-load Linear Tracking Turntable introduced with the Dimensia system in 1984.
• Also in 1985, RCA introduced the Digital Command Component series. The fundamental component of this "RCA Audio System" is the MSR140 Stereo Receiver, which provides system control functionality for audio components only, with no need to purchase a Dimensia television. This Digital Command Component series includes the MTT131 Linear Tracking Turntable, which is identical to the MTT130 Top-load model except for the lack of the Dimensia name on the unit.
• In 1987 RCA introduced the MTT230 Top-load Linear Tracking Turntable to replace the earlier units.

Specifications:

• Platter Drive:
  Direct drive by brushless DC servo motor controlled by crystal oscillator and phase-locked loop
• Platter:
  11.6" diameter die-cast aluminum alloy
• Speeds:
  33 1/3 and 45 RPM, automatically switched for record size, with manual override
• Signal-to-Noise (S/N) Ratio:
  78 dB (DIN-B)
• Wow and Flutter:
  0.025% (WRMS)
• Tonearm Type:
  Linear tracking, statically balanced
• Tonearm Effective Length:
  3 3/4 inches
• Lead-wire Capacitance:
  140 pF
• Cartridge Type:
  Dual magnet
• Stylus Material:
  Diamond
• Frequency Range:
  10 Hz to 25 KHz
• Output Voltage:
  3.5 mV @ 1000 Hz @ 50 mm per second
• Channel Difference:
  1 dB @ 1000 Hz
• Channel Separation:
  23 dB @ 1000 Hz
• Tracking Force:
  1.25 gram +/- 0.25 gram
• Cartridge Weight:
  5.9 grams
• Power Source:
  120 Volts, 60 Hz
• Power Consumption:
  15 Watts during playback
• Dimensions:
  10.8" x 3.2" x 12.4"
• Weight:
  15.0 lbs.