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Sony TC-651

Stereo Tapecorder (1971)

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Sony TC-651


The Sony Model TC-651 is a solid state stereo tape deck designed for the dedicated audiophile.

The use of all silicon transistors and four precision heads including a reverse playback head results in extremely accurate handling of transient waveforms, low noise and low distortion.

The three motor tape transport mechanism is designed to provide flutter-free, stable operation either in a vertical or horizontal position.

Independent mechanism, electronic plug-in card system, plug-in head assembly and plug-in head cover make this recorder extremely simple to service.

Special features include:

APS (Automatic Program Scanner) senses the beginning of a recorded tape

Automatic reversing system may be programmed for non reverse, one reverse cycle, or continuous play

Microphone inputs, line inputs and outputs which correspond with level controls on the front panel

Tape equalization selector switch for standard or Low-noise High-output tape

Professionally calibrated VU meters for accurate record level setting

Automatic shut-off

Instantaneous comparison of source and tape


Echo effect for artistic recording techniques

Level adjustable headphone output


Track system: auto reverse, 4-track, 2-channel, stereo/monaural system

Heads: 2 x playback, 1 x record, 1 x erase

Motor: 2 x reel, 1 x capstan

Reel size: up to 7 inch reel

Tape speeds: 3 34  7 12 ips

Wow and flutter: 0.04% (7 12 ips)

Frequency response: 20Hz to 25kHz (7 12 ips)

Signal to Noise Ratio: 54dB

Input: 70mV (line), 0.2mV (mic)

Output: 0.775V (line)

Semiconductors: 74 x transistors, 92 x diodes

Dimensions: 422 x 457 x 243mm

Weight: 20.2kg


service manual   English - Biro

instruction/owners manual   English - alexanderreddington

quick reference card   English - alexanderreddington

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re: TC-651

Tape deck has been in storage many years. Plays well, have not tried to record. Only one perceptible problem--fast forward and rewind. In one direction, it spills tape when stopped; the other, it breaks the tape. Sounds like brakes are out of adjustment, but I have no idea how to adjust. Any ideas?

re: TC-651

My tc 651 sounds slow, is there a adjustable Potentiameter for the capstan motor? ty bob

re: TC-651

Asides from cleaning/re-lubrication of the motor and mechanism, the motor-run capacitor can fail, burning out the capstan motor if continued use.

re: TC-651

My almost identical TC-650 was doing the same thing and I had to clean the motor with CRC lectra-motive and re-oil it.

This website is not affiliated with or sponsored by Sony. To purchase TC-651 spares or accessories, please contact the company via their website or visit an authorised retailer.