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Sound Rating: 5 / 10 # Owners: 1
Relaibility Rating: 5 / 10 Views: 317

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Technical Details

Brand: Sony

Model:TC 640

Category:Mid High Fidelity (most Japanese recorders fall into this category)

Application:Consumer

Electronic:Solid State

Country of Manufacture:Japan

Release dates: -

Original Price: $380

Tracks:1/4 Rec/PB

Speeds: 3 3/4, 7 1/2

Max Reel Size("): 7"

Number of heads: 3

Head Composition: Permalloy

Head Configuration: Stereo

# Motors: 1

Auto Reverse?:No

Voltage(s): 110-120v

Frequency Response:( 3dB): 7½ ips: SLH tape: 30Hz - 20kHz. Normal tape: 40Hz - 18kHz 3¾ ips: SLH tape: 35Hz - 17kHz. Normal tape 40Hz - 16kHz

Wow and Flutter:less than 0.07% at 7½ , less than 0.11% at 3¾ ips

Signal-to-Noise Ratio:52 dB (normal tape) 55 dB ('SLH' tape)

Sound quality rating:5 / 10

Long-term reliability rating: 5 / 10

Additional Details

Description

This was a two speed (3¾ & 7½ ips), quarter-track stereo tape deck with a single motor, three heads and a seven inch reel capability.
Other features included a record equalization switch for maximum record/playback characteristics with either normal or special tapes, tape/source monitoring switch, mic/line mixing, sound-on-sound and echo facilities, built-in tape reel locks, scratch filter and separate level controls for each channel.

Additional Info

Harmonic distortion: 1.5% at rated output / Bias frequency: 120 kHz / Semi-conductors: 24 transistors, 9 diodes / Rewind speed: 90 seconds for 1200ft tape / Inputs: mic – 600 ohm impedance, -72 dB (0.2mV) line – 100k ohm impedance, -22 dB (60mV) DIN – 10k ohm impedance / Outputs: line – 100k ohm impedance, 0 dB (775mV) DIN – 10k ohm impedance, -5 dB (430mV) headphones – 8 ohm / Dimensions: 14.5 x 15.5 x 9.5″ (369 x 395 x 243.5mm) / Weight: 33lb 3oz (15 kg) / quarter-track stereo

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