JVC QL-L20B Turntable

JVC QL-L20B Turntable
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The QL-L20B was a Quartz-Locked Fully Automatic Linear-Tracking Turntable manufactured by the JVC Corporation. It had the following features:

  • Linear Tracking for zero tracking error
  • Double-Servo Quartz control for absolute speed accuracy
  • Plug-in cartridge connector
  • Cog-free coreless DC FG servo motor
  • Independent Suspension System
  • Computer-supervised fully automatic operation
  • Automatic disc size/speed selector

Specification

Model NameQL-L20B
Motor TypeCoreless DC FG Servo Motor
Drive SystemDirect Drive
Speed Detection SystemIntegrated Frequency Generator
Servo SystemDouble-servo Quartz
Start-up Characteristics1/2 Rotation
Wow and Flutter0.045 % (DIN), 0.025 % (WRMS)
Signal to Noise Radio78 dB (DIN-B)
Speed Deviation0.005 %
Load Characteristics0 % (under 100 g loads)
Drift (per hour)0.0005 %/H
Thermal Drift0.00005 % per degree centigrade
Platter Size295 mm, die-cast aluminium
Platter mass + Mat970 g
Tonearm TypeLinear-Tracking statically balanced straight arm
Tonearm Length157 mm
Overhang0
Applicable Tracking Force1.25 g
Applicable Cartridge Mass (main)-
Operation ModeFully Automatic
Cartridge SuppliedMD-1045
Dimensions435 mm × 97 mm × 360 mm
Mass5.1 kg

Cost/eBay

Fully automatic linear-tracking turntables are highly desirable these days, and the QL-L20B is a desirable piece of engineering that audiophiles seek even today. A good working one in mint condition can sell for well over one hundred pounds and more.