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SONY MODEL TC-640 and TC-640B THREE-HEAD,
THREE-MOTOR STEREO TAPE DECKS


TC-640 left, and TC-640B right.
(Note difference in Non-Locking and Locking Pause control left of supply reel tension arm, as well as the head cover).
Short on space but long on sophisticated recording requirements? This three-head three-motor deck is packed with features and outstanding specifications, yet is compact enough for bookshelf or other small size storage area. The compact TC-640 Is basically a simplified version of our exotic TC-650. Three motors insure precise tape speed in play, record modes, and ultra-fast rewind and fast forward. Separate heads-for erase, record and playback-give TC-640B superior performance, and also all tape/source monitoring of recording quality. And, there's a tape select switch, for optimum recording when using either standard or low noise high output tape; sound-on-sound, echo effects; automatic total mechanism shut-off (TMS). Bold, distinctive styling will make it the main attraction in your stereo system.
Quarter Track Stereo Record and Playback
Unique Lever-Action Transport Control
Solenoid-Operated Transport Functions
Die-Cast Tape Guide and Head Block Mounting Frame
Hysteresis Synchronous Capstan Motor and Outer Rotor Reel Drive Motors
Four-Digit Tape Counter
Mechanical Memory Capability permits timer-activated record, playback, and stop modes
Microphone/ Line Mixing
Large, Illuminated VU Meters Calibrated to NAB Standards
Pause Control with Lock (Non-Locking Pause Control on TC-640)
Built-In Reel Locks
Scrape Flutter Filter
SLH Tape Sample included.
Built-In Sound-on-Sound and Echo
Hyperbolic Heads require no pressure pads
Record Equalization Selector Switch allows optimum performance with standard tape or Sony low-noise, high-output tape
Vertical/Horizontal Operation
Non-Magnetizing Record Head
Automatic Shut-off
Automatic Tape Lifters
Tape/Source Monitoring
Three Heads
Electrical Speed Change
SPECIFICATIONS-
Frequency Response @ 7-1/2IPS (Hz) - 20-25k
Frequency Response @ 3-3/4IPS (Hz) – 30-18k
Wow & Flutter (%) - .07
Signal To Noise Ratio (db) - 55
Microphone Input Plug - Phone
Line Input Impedance (Ohms) - 100k
Line Input Sensitivity (Volts) - .06
Line Output Impedance (Ohms) - 100k
Maximum Reel Size - 7"
Power Requirements - 120 VAC, 80 watts, 60 Hz
Rewind Time 1200’ Tape (Seconds) - 90
Bias Frequency (kHz) - 120
Number of Motors - 3
Capstan Drive Motor – Hyst. Sync.
Reel Drive Motor Type - Torque
Dimensions WxHxD (Inches) – 14-1/2x15-1/2x9-1/2
Weight - 33lbs.
Photo and data direct from Sony(Superscope) brochures. Thanks to A. W. Covert, Battle Creek, MI for this page.