SONY TTS-2400
¥ 22,000 (around 1971)
Commentary
Belt drive turntable with DC servo motor.
A low-speed rotation DC servo motor is used.
Low speed reduces vibration and noise, and servo control prevents uneven rotation. Also, a polyurethane belt is used to drive the turntable.
A dedicated IC is used for the servo circuit to greatly improve reliability.
31 cm aluminum die-cast is adopted for the turntable, and oilless metal is used for the bearing so that no lubrication is required.
Strobe with large neon tubes is adopted.
Model Rating
| Type | Belt drive turntable |
| Turntable | 31 cm aluminum die cast, 1.5 kg |
| Motor | DC servo motor |
| Drive system | Belt drive |
| Number of revolutions | 33 1/3, 45 rpm |
| Speed adjustment range | + / - 4 per cent |
| Start-up characteristic | Within 1/2 Rotation (33 1/3rpm) |
| Wow and flutter | Within 0.06% WRMS |
| Signal-to-noise ratio | 55 dB or more |
| Semiconductor used | IC : 1 Transistor : 1 Diode : 1 |
| Pwer | 100 VAC, 50Hz/60Hz |
| Power consumption | 3W |
| External dimensions | Width 328x Height 118x Depth 357 mm |
| Weight | 5kg |
| Attachment | 45 Rotation Adapter |