National/Panasonic RS-262U
¥ 28,000 (around the early 1970 s)
Commentary
This is a standard cassette deck developed considering the balance of performance, price and design.
The mechanism is very simple and consists of one flywheel, three pulleys, one set of interlocking pulleys, two rubber belts and one motor. The motor is an electronically controlled DC motor with three transistors and one diode for the control circuit. The capstan (flywheel) is driven by a belt.
The head uses a permalloy laminate type.
The circuit consists of two transistors per channel, four transistors including a preamplifier, and a new low-noise PNP silicon transistor 2SA666 on the top to improve the signal-to-noise ratio.
It is equipped with an auto-release mechanism. When the tape is wound up to the end during recording or playback, the automatic stop device works and the mechanism stops.
To support low-noise and high-output tapes, a bias switching type tape select switch is installed.
Equipped with an NS switch that cuts high-frequency noise such as tape hiss.
This filter consists of an LC circuit.
The volume is a sliding type.
It is possible to play back headphones.
You can switch between mono and stereo.
Equipped with a level meter.
Equipped with a pause mechanism.
Equipped with a tape counter with a reset button.
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Model Rating
| Type | Cassette deck |
| Recording track system | 4-track 2-channel stereo |
| Erasing method | AC Erase |
| Signal-to-noise ratio | 45 dB or more |
| Frequency characteristic | 40 Hz to 12 kHz |
| Wow flutter | 0.18%(WRMS) |
| Input Sensitivity / Impedance | Mic : -70dB/600 ~ 20k Ω Line : -30dB/150k Ω |
| Output Level / Impedance | Line out : 0.5 V (variable, maximum) / 50k Ω or more Headphone : 8 Ω |
| Recording and reconnector | CES standard |
| Semiconductor used | Transistor : 11 Diode : 4 pcs |
| Power supply voltage | 100 VAC, 50Hz/60Hz |
| Power consumption | Approx. 6W |
| External dimensions | Width 368x Height 96x Depth 238 mm |
| Weight | Approx. 3.5 kg |