www.radiomuseum.org/r/sony_stereo_tape_deck_tc_850_2.html
hifi-wiki.com/index.php/Sony_TC-850-2
reel-reel.com/tape-recorder/sony-tc-850/
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DESCRIPTION

​The TC 850 was a semi-professional three-motor, four head tape deck with a 10½ ” reel capacity.
The recorder could record in half-track stereo, but thanks to the extra playback head, quarter-track stereo playback was possible.
All transport controls were servo-controlled, which resulted in a seamless transition between transport modes. The recorder was considered ‘easy to use’ by reviewers.
This was not a cheap machine, in 1974 it cost almost twice as much as a Revox A77 so it is fairly easy to see why not many were sold.

Number of Transistors 77 Semiconductors
Main principle Audio-Amplification Wave bands - without Details Tape Recorder Power type and voltage Alternating Current supply (AC) Loudspeaker - This model requires external speaker(s). Material Various materials from Radiomuseum.org Model: Stereo Tape Deck TC-850-2 - Sony Corporation; Tokyo Shape Tablemodel, with any shape - general. Dimensions (WHD) 445 x 501 x 254.5 mm / 17.5 x 19.7 x 10 inch Notes Sony Stereo Tape Deck Model TC-850-2. Track system: 2-track, 2-channel, stereo/monaural system Heads: 1 x 2T record, 1 x 2/4T playback, 1 x erase Motor: 3 motors: 1x capstan, 2x reel Reel size: up to 10.5 inch reel Tape speeds: 3 Speeds: 3 3⁄4  7 1⁄2  15 ips Wow and flutter: 0.03% (15 ips) Frequency response: 20Hz to 30kHz (15 ips) Signal to Noise Ratio: 59dB Input: 70mV (line), 0.2mV (mic) Output: 0.775V (line) Semiconductors: 77x transistors, 79x diodes

 

Sony TC-850

Sony TC-850-2 Stereo Tape Deck VU Meter

Sony TC-850-2 Stereo Tape Deck (1971-74)

Sony TC-850-2 Stereo Tape Deck (1971-74) inside