DIATONE DT-1500
¥ 59,800 (around 1970)
Commentary
A stereo tape deck designed with sufficient mechanical accuracy for the entire mechanism.
By sticking the sensing foil on the tape end, it is possible to perform auto reverse performance in both left and right directions.
Both recording and playback are possible, and endless performance is also possible.
It uses a dual capstan system with two flywheels for right and left running. It can react quickly to the reverse running of the tape and prevents interference with the performance.
A belt drive and two flywheels also improve the wow flutter.
An electromagnetic solenoid system is used to operate the pinch roller. When the tape performance is finished, the auto stopper works and the power of the motor is turned off and the pinch roller is released.
It uses a band brake to ensure smooth and reliable operation even in sudden stop operation and prevent tape pain.
The head uses a 0.1 mm Permalloy laminate head.
The hyperbolic shape reduces the low-range contour effect.
Uses a hysteresis synchronous motor for stable operation.
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Model Rating
| Type | Oatley berth type tape deck |
| Maximum use reel | No. 7 |
| Tape Speed | 9.5cm/s, 19cm/s |
| Truck type | 4-track 2-channel stereo |
| Recording system | AC bias, 80 kHz |
| Erasing method | AC Erase |
| Input sensitivity | Mic:0.3mV Input:0.1V Din:30mV |
| Output level | Output:0.8V Din:0.8V |
| Frequency characteristic | 19cm/s : 20 Hz to 20 kHz Playback : 50 Hz to 15 kHz ± 2 dB 9.5cm/s : 20 Hz to 14 kHz |
| Wow and flutter | 19cm/s : 0.1% Wrms or less 9.5cm/s : 0.14% Wrms or less |
| Signal-to-noise ratio | 52 dB or more (Apex operation level) 58 dB or More (JIS) |
| Crosstalk | 60 dB or more |
| Erasure rate | 65 dB or more |
| Equalizer | NAB |
| Semiconductor used | Transistor : 18 Diode : 9 pcs |
| Power supply voltage | 100 VAC, 50Hz/60Hz |
| Power consumption | 50W (1970 Catalog) 58W (1971 Catalog) |
| External dimensions | Width 402x Height 181x Depth 345 mm |
| Weight | 11kg |