Sony TC-K60 (1978–1981)
A front-loading stereo cassette deck with AMS sensing and dual-mode peak hold meters.
Overview
The Sony TC-K60 is a stereo cassette deck produced from 1978 to 1981 by Sony Corporation, Tokyo. It features an Automatic Music Sensor (AMS) function for track detection and includes a double-indication LCD peak program meter with Manual and Auto peak hold modes. Part of Sony’s TC-K series, the deck uses a single capstan drive system and a brushless, slotless BSL Green Motor derived from Sony turntable technology. It supports three tape types via a 3-position selector with independent bias and equalizer settings, and includes Dolby NR with an integrated MPX filter.
Specifications
| Heads | 1 x Erase, 1 x Record/Playback (F&F ferrite head) |
| Motor | BSL Green Motor |
| Signal-to-noise ratio | 59 dB (Dolby off, Peak Level, Duadcassette) |
| Frequency response | 20 Hz ~ 18 kHz (Duadcassette) |
| Wow and flutter | 0.045% WRMS |
| Total harmonic distortion | 1.3% (Du Ad Cassette) |
| Power consumption | 11W |
| Dimensions (W x H x D) | 430 x 155 x 325 mm |
| Weight | 7.6 kg |
| Servo system | Frequency generator |
| Drive system | Single capstan |
| FF/Rew time | 90s (C-60) |
| Inputs | 0.25 mV (MIC), 0.07 V / 100 kOhm (line) |
| Outputs | 0.435 V (line fixed), 0.026 V ... 0.775 V (line variable), 8 Ohm (headphones) |
| Bias frequency | 105 kHz |
| Tape selector | 3-position with independent bias and equalizer |
| Dolby NR | Switch with integrated MPX filter |
| Rec Mute | One-touch silent recording |
| Level controls | Separate for line output and headphone output |
| Auto shut-off | Yes |
| Soft-eject | Mechanism included |
| Programming | Up to 9 selections |
| Memory Stop / Autoplay | Simultaneous rewind + play stops at counter 999 and auto-plays |
Design
The TC-K60 uses an F&F (ferrite & ferrite) record/playback head for long-term stability and employs a BSL Green Motor—a brushless, slotless linear motor originally developed for Sony turntables—to ensure smooth, quiet operation. The deck features an integrated-circuit microprocessor controlling the AMS (Automatic Music Sensor) function, with LCD peak meters driven by the CX-765 IC. Despite having only one motor, one capstan, and two heads, it retains mechanical transport keys and offers a rugged build.
Context
Marketed as a front-loading cassette deck with Dolby noise reduction, the TC-K60 was positioned in Sony’s TC-K series during the late 1970s. It did not achieve strong sales, being considered too expensive for most consumers while falling short of the semi-professional performance expected from three-head decks of the era.
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