SONY TC-2120
¥ 25,800 (around 1969)
Commentary
The first Sony cassette tape deck.
It uses the Sony-O-Matic recording method that automatically adjusts the volume of recording.
All silicon transistors are used.
Equipped with a noise suppressor switch, which can be turned ON to reduce hissing when playing tapes with poor recording quality.
Equipped with a sentinel lamp that blinks while the tape is running.
Equipped with a 3-digit tape counter.
Equipped with microphone input.
It has a headphone jack.
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Model Rating
| Type | Cassette deck |
| Track format | 4-track 2-channel |
| Input terminal | Microphone : 600 ω, minimum input level -72dBs (0.2 v) Auxiliary Input : 100k Ω, Minimum Input Level -22dBs (0.06 V) |
| Output terminal | Line : 100k Ω, Reference output 0 DBs (0.775 V) For Headphones : 8 Ω |
| Recording and reconnector | DIN Standard |
| Tape speed | 4.8cm/s |
| Wow and flutter | Not more than 0.2% |
| Distortion factor | 2.5%(OVERALL) |
| Frequency characteristic | 50 Hz to 10 kHz |
| S/N | 45dB |
| Semiconductor used | Transistor : 18 Diode : 6 pcs |
| Pwer | 100 VAC 50Hz/60Hz |
| Power consumption | 17W |
| External dimensions | Width 329x Height 86x Depth 187 mm |
| Weight | 3.4kg |
| Attachment | Recording and Recoding (RC-2) Demo Tape (C-30) |