1973  Sony TC-755
Back to gallerySpecifications

A two speed (3¾ & 7½ ips), three head tape deck with a 10½" reel capability, closed loop dual capstan tape drive which reduced wow & flutter to a minimum, logic controlled transport functions which permitted the feather-touch control buttons to be operated in any sequence, at any time without spilling or damaging tape, an AC servo control capstan motor and an eight-pole induction motor for each of the two reels.

Other features included a record equalization switch for maximum record/playback characteristics with either normal or special tapes, mic attenuators to eliminate distortion when the microphone pre-amp stages were overdriven and a tape/source monitoring switch to take full advantage of the separate Ferrite and Ferrite record and playback heads.

Additional images, test report and circuit diagram for this recorder are featured on the CD-ROM.

Specifications at a glance
Model
TC-755
Year
1973
Price when new (in the USA)
$699 (Audio magazine review, 1975)
Track system
quarter-track stereo
Heads
Ferrite & Ferrite record, F&F playback and erase
Motors
AC servo control capstan motor, 2 x 8-pole induction reel motors
Maximum reel size
10½"
Tape speeds
7½ and 3¾ ips
Frequency response ( 3dB)
Sony SLH tape
7½ ips: 30Hz - 25kHz
3¾ ips: 40Hz - 16kHz
Wow & flutter
less than 0.05%at 7½, less than 0.08% at 3¾ ips
Signal to noise ratio
53 dB (normal tape) 56 dB (SLH tape)
Distortion
less than 1.2%
Semi-conductors
56 transistors, 1 IC, 2 FETS, 41 diodes
Inputs
mic - low impedance, -72 dB (0.2mV)
line - 100k ohm impedance, -22 dB (60mV)
DIN - 3.9k ohm impedance
Outputs
line - 100k ohm impedance, -5 dB (430mV)
DIN - 8.2k ohm impedance, -5 dB (430mV)
headphones - 8 ohm
Dimensions
17.2 x 17.75 x 8.7" (435 x 451 x 221mm)
Weight
52lb 15oz (24 kg)
 
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