Technics SL-1900

Data[edit]

General

Manufacturer: Technics
Model: SL-1900
Type: Record player
Year of manufacture: 1976 - 1978
Made in: Japan
Color: Brown
Power consumption: 4,5 Watt
Dimensions: 137 x 430 x 334mm
Weight: 7.2 kg
Original price approx.: 550 DM

Connections

Outputs: Cinch red/white + GND
- sound cell EPC-270: 3,2 mV, 47 kOhm
- pickup: Technics EPC-270 C-II (MM standard system as original equipment)
Inputs: -

Technical Data

Drive: Direct drive
Motor: counter electromotive power frequency generator servo DC motor
Speed: 33 1/3 and 45 rpm
Synchronous fluctuation: 0.03% WRMS (JIS C5521), ±0.042% evaluated zero-to-peak (DIN 45507)
Rumble noise ratio:
- DIN 45539A: 50 dB
- DIN 45539B: 73 dB
Turntable: Injection moulded aluminium, 310 mm
Operating mode: Automatic or manual
Pitch: ±5%
Tonearm: Tubular arm, statically balanced
- needle support: 0 - 3 g
- effective axis length: 230 mm
- overhang: 15 mm
- crank angle: 21.5
- Friction: 7mg (horizontal and vertical)
- track misalignment angle: within + 3 (145mm from center), + 1 (55mm from center)
- Pickup weight range: 5.5 - 9.5 g
- Weight of tonearm head: 9.5 g
Cartridge: Technics EPC-270 C-II (MM)

Special Features

Set-up point: Adjustable for 12",10" and 7" records.

Memo-Repeat: repeat play from one to six times, or continuous repeat play adjustable Heavyweight design: Heavy polymer sub-chassis on Viscoelastic damped steel springs.

Motor-rotor directly connected to turntable (developed by Technics)
Electronically controlled with then revolutionary One-Chip-IC AN 630
Highly sensitive tonearm with cardan suspension in precision pivot bearings. Equally exceptional at the time.
Visco-damped tonearm control and anti-skating - a novelty at the time, as were the thick, low-capacity phono cables.