DIATONE DT-4201
¥ 45,000 (released in 1975)
Commentary
Cassette deck equipped with quick recording monitor function.
It uses a quick recording monitor system that allows one touch monitoring.
If you want to monitor the recording state after recording is finished, press the REVIEW button and release your finger at the desired location to leave the regenerating condition. You can also press the CUE or REVIEW button during playback to move the tape to the desired location and release your finger to return to the regenerating condition.
A DC servo motor is used as the drive motor.
Equipped with chrome / normal tape selector.
With this tape selector, you can change many characteristics such as playback equalizer, recording peaking, bias current, sensitivity, and so on.
A muting circuit is used to prevent noise during switch switching.
In order to prevent the magnetic head from being magnetized, we use a circuit in which the switching timing of the power switch of the oscillator and the recording / playback changeover switch are shifted.
Equipped with end stopper.
In addition to the normal walnut finish, there was a Shiraki type DT 4201 w.
Model Rating
| Type | Cassette deck |
| Truck type | 4-track 2-channel |
| Tape speed | 4.8cm/s |
| Fast-forward and rewind time | 60 seconds (C-60) |
| Frequency characteristic | 30 Hz ~ 16 kHz (Chrome Tape) 30 Hz ~ 13 kHz (Normal Tape) |
| Wow and flutter | 0.12%WRMS |
| Signal-to-noise ratio | 50dB |
| Distortion factor | Chrome / Normal not more than 3% (0 vu) |
| Erasure rate | 60 dB or More (1 kHz, both Chrome and Normal) |
| Bias oscillation frequency | 85kHz |
| Equalizer curve time constant | Normal tape : 3,180 μ sec + 120 μ sec Chrome Tape : 3,180 μ sec + 70 μ sec |
| Crosstalk | Track to track : 40 dB or more (125 Hz) Channel to channel : 30 dB or more (1 kHz) |
| Input Level / Impedance (Unit : dB (V)) |
Mic : -71dB/2.2k Ω Line : -20dB/330k Ω DIN in : -30dB/10k Ω |
| Output Level / Impedance (Meter 0 VU) |
Output : -10dB/10k Ω DIN out : -9dB/50k Ω Phones : -25dB/8 Ω |
| Pwer | 100 VAC, 50Hz/60Hz |
| Power consumption | 11W |
| External dimensions | Width 412x Height 131x Depth 257 mm |
| Weight | 6kg |
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