SONY TC-K8B
¥ 128,000 (around 1976)
Commentary
The first newly developed cassette deck, a stereo cassette deck equipped with a multi-functional LCD peak program meter.
It is equipped with a double indication type LCD peak program meter that can perform level check and peak hold simultaneously. There are two types of peak hold settings : Manual, which indicates the maximum value up to that point, and Auto, which resets automatically every approximately 1.7 seconds.
An F & F head is used for the recording / reproducing head, and the direct coupling of the reproducing amplifier eliminates the deterioration of sound quality caused by capacitors.
A green motor (FG servo motor) is used for the capstan, and a high-torque motor is used for quick winding.
Equipped with a 3-stage switching tape selector independent of bias and equalizer.
Equipped with a memory stop / play mechanism convenient for repeated playback of program source.
It is equipped with a Dolby NR system that improves the high-frequency dynamic range and an MPX filter that cuts the pilot signal of FM broadcasting.
Equipped with a Rec Mute mechanism that allows one touch silent recording.
It is possible to follow up recording which is convenient for editing.
Line and microphone mixing is possible.
Equipped with lineout and headphone independent volume.
Equipped with front line in jack.
Equipped with Sony Limiter.
Uses an auto shut-off mechanism.
By using the separately sold program timer, continuous absence recording and alarm clock playback are possible.
Separately sold wired remote control allows remote operation.
Model Rating
| Type | Stereo cassette deck |
| Track system | 4-track 2-channel stereo |
| Bias frequency | 105kHz |
| Fast-forward and rewind time | Approximately 70 seconds (at C-60) |
| Total S/N | 60 dB (Fe-Cr, peak level, Dolby NR off) 56 dB (CrO2, peak level, Dolby NR off) Dolby NRon : 5 dB improvement (at 1 kHz), 10 dB improvement (5 kHz or more) |
| Overall strain rate | 1.3% |
| Frequency characteristic (Dolby NR off) |
20 Hz ~ 18kHz/30Hz ~ 16 kHz ± 3 dB (Fe-Cr) 20 Hz ~ 17.7kHz/30Hz ~ 15 kHz ± 3 dB (CrO2) 20 Hz to 15 kHz (Normal) |
| Wow and flutter | 0.045%(WRMS) |
| Input terminal | Mic : 0.2 mV (-72dB) / for Low Impedance Microphone Line : 0.06 V (-22dB) / 100k Ω |
| Output terminal | Line : 0.775 V (at 0 dB, 100k Ω load) Headphone : 8 Ω ~ 32 Ω |
| Meter indication range | -40dB to + 5 dB |
| Attack time | Indication when a sine wave of 0 dB is applied for 10 msec : -1dB ± 0.5 dB Indication when a sine wave of 0 dB is applied for 3 msec : -4dB + / - 1 dB |
| Recovery time | Time to return from 0 dB to -20dB : 750 msec. |
| Visible Elements | L/R channel, each 64 elements |
| Remote control jack | 11-pin connector |
| Semiconductor used | Transistor : 93 Diode : 94 units FET : 1 IC : 22 |
| Power outlet | Unsitched : 1 system, 300W |
| Pwer | 100 VAC, 50Hz/60Hz |
| Power consumption | 26W |
| External dimensions | Width 430x Height 170x Depth 310 mm |
| Weight | 10.8kg |
| Attachment | Connection code Head cleaning rod |
| Sold Separately | Wired Remote Controller RM-30 |