DIATONE DT-1201
¥ 49,800 (around 1972)
Commentary
A 3-head tape deck with separate heads for recording, playback, and erasing.
The motor uses a hysteresis synchronous motor that rotates smoothly and does not change the tape speed even if the power supply voltage fluctuates.
In order to prevent sudden tension from being applied to the tape, it is equipped with a friction slip type protection mechanism that softens the tension when a certain amount of force is applied to the tape.
The pinch roller operates in an electromagnetic solenoid system, and the auto stopper works when the tape performance is finished.
When the Play button is turned on, the mechanism stays in the standby state and the pinch roller starts to move only after the power is turned on. Therefore, it is also possible to record while listening using the time switch.
Equipped with a band brake, it operates smoothly even in sudden stop operation.
Equipped with a pause mechanism, the tape can be temporarily stopped by switching to a pause during recording and playback.
The amplifier section has four built-in amplifiers, two for playback only and two for recording only.
Equipped with a tape select switch, good recording can be performed on both conventional tapes and low-noise tapes by switching.
The microphone and line-input volume have independent circuits, allowing for mixed recording.
Model Rating
| Type | 4-track 2-channel 3-head tape deck |
| Tape used | Normal, Low Noise Tape |
| Maximum use reel | No. 7 |
| Tape Speed | 9.5cm/s, 19cm/s |
| Truck type | 4-track 2-channel stereo |
| Recording system | AC bias |
| Erasing method | AC Erase |
| Input Sensitivity / Input Impedance | Mic : 0.5mV/2.2k Ω Line : 100mV/270k Ω Din:30mV |
| Output Level / Impedance | Line : 300mV/2.7k Ω Din : 300mV/2.7k Ω |
| Frequency characteristic | 19cm/s : 20 Hz to 20 kHz, Playback : 50 Hz to 15 kHz ± 3 dB 9.5cm/s : 20 Hz to 10 kHz |
| Wow and flutter | 19cm/s : 0.1% Wrms or less 9.5cm/s : 0.14% Wrms or less |
| Signal-to-noise ratio | 56 dB or more |
| Equalizer | 19cm/s : 50 μ s, 3180 μ s 9.5cm/s : 90 μ s, 3180 μ s |
| Fast-forward rewind time | Approximately 2 minutes (370m) |
| Semiconductor used | IC : 6 Transistor : 10 Diode : 10 pcs |
| Power supply voltage | 100 VAC, 50Hz/60Hz |
| Power consumption | 55W |
| External dimensions | Width 423x Height 192x Depth 372 mm |
| Weight | 12kg |