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Sound Rating: 5 / 10 # Owners: 1
Relaibility Rating: 5 / 10 Views: 305

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Technical Details

Brand: Sony


Category:Mid High Fidelity


Electronics:Solid State

Country of Manufacture:Japan

Release dates:1969 - 1972

Tracks:1/4 Rec/PB+1/2PB

Speeds: 3 3/4, 7 1/2

Max Reel Size("): 7"

Number of heads: 2

Head Composition: Permalloy

Head Configuration: Stereo

Voltage(s): 110-120v

Frequency Response:7½ ips: 20Hz to 22kHz 3¾ ips: 20Hz to 15kHz

Wow and Flutter:less than 0.09% RMS at 7½ ips, 0.15% at 3¾ ips

Signal-to-Noise Ratio:53dB

Sound quality rating:5 / 10

Long-term reliability rating: 5/ 10

Additional Details


First announced
in late 1969, the TC 666D was a quarter-track, three motor auto reverse
stereo tape deck featuring what Sony described as ‘Sony ESP (Electronic
Sensory Perceptor) – a function which automatically reversed tape direction
from right to left without the need of magnetic cue strips.
Operating at two speeds, 7½ and 3¾ ips, a frequency
response of 20Hz to 22kHz was claimed at the former and 20Hz to 15kHz
at the latter.
Other features included feather-touch solenoid transport
controls, sound-on-sound, high frequency bias and Sony’s own noise reduction
system (SNR) which, according to Sony, automatically reduced gain during
quieter passages, hence eliminating unwanted background noise.

Additional Info

Hum and noise: 59dB at 7½ ips / Harmonic distortion: 1.6% / Bias frequency: 160kHz / Rewind speed: 100 seconds for 1200ft / Inputs: mic: 600kohm -72dB. aux: 100kohm 61mV / Outputs: line 100k 0.775V. headphone 8 ohm (31mV) / Dimensions: 17.2 x 8.1 x 16.6″ (437 x 205 x 422mm) / Weight: 48.5 lbs (22 kg) / quarter-track stereo


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