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Sony TC-854-4

Four Channel Solid State Stereo Tapecorder (1973-74)

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Sony TC-854-4


The Sony model 854-4 is one of the most professional tape recorders in the world.

The three motor and four head model 854-4 accommodates up to 10-1/2" reels and operates at speeds of 15, 7-1/2 and 3-3/4 ips.

The model is designed for recording and playback of ordinary 4-track 2-channel stereo as well as 4-channel Quadradial stereo.

Special features of the model 854-4 include:

An AC servo controlled capstan drive motor prevents speed variation regardless of voltage or load changes.

Dual capstan closed-loop tape drive assures positive tape-to-head contact while isolating external vibration.

Logic controlled transport function permits switching the tape transport from fast forward to rewind or from either of these modes to the play mode without going into the stop mode.

Automatic Program Scanner and Automatic Tape Stop provide program cueing by simply depressing the respective button after a tape is loaded.

Syncro-Trek to allow synchronous recording of new tracks with previously-recorded tracks

Microphone and line input mixing

Tape lift switch for tape cueing and editing

Tape equalization selector switch for Sony Low-noise High-output tape and standard tape.

For Quadradial stereo recording and playback, the full width of a tape is used; tracks 1 and 3 are for the front channels and tracks 2 and 4 are for the rear channels.


Track system: 4-track, 4-channel, stereo/multi channel system

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

Motor: 2 x reel, 1 x capstan

Reel size: up to 10.5 inch reel

Tape speeds: 3 34  7 12  15 ips

Wow and flutter: 0.03% (15 ips)

Frequency response: 20Hz to 30kHz (15 ips)

Signal to Noise Ratio: 59dB

Input: 60mV (line), 0.2mV (mic)

Output: 0.775V (line)

Semiconductors: 101 x transistors, 101 diodes

Dimensions: 440 x 558.5 x 253mm

Weight: 28kg


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