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Sound Rating: 8 / 10 # Owners: 1
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Technical Details

Brand: Sony

Model:TC-766-2

Category:Super High Fidelity

Application:Semi-Pro

Electronic:Solid State

Country of Manufacture:Japan

Release dates:1978 - 1983

Original Price: $1080

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

Speeds: 7 1/2, 15

Max Reel Size("): 10.5"

Number of heads: 4

Dimension: 20½ x 17½ x 9¼ " (521 x 444.5 x 234.9 mm)

Head Composition: Ferrite

Head Configuration: Stereo - Stacked

# Motors: 3

Auto Reverse?:No

Voltage(s): 110-120v

Frequency Response:30Hz - 22kHz at 15 ips (3dB)

Wow and Flutter:.018% @ 15 ips

Signal-to-Noise Ratio:65 dB

Sound quality rating:8 / 10

Long-term reliability rating: 8 / 10

Weight: 58.5 lbs (26.6kg)

Additional Details

Description

Although Sony had produced a pretty decent number of reel to reel tape recorders since the early 60s, when the cassette came along, they put a lot of their focus in that direction and reel to reel seem to fall a bit by the wayside. When Sony did show up with a new model, it was usually mid to high end. The introduction of the  TC 766-2 was a semi-professional 2-track recorder, designed for more serious users. It has a lot of similarities to the Sony TC-765 which was a 1/4 track low-speed machine with three heads. This half track model featured a quarter track playback head which was switchable. Both machines used the Super durable Ferrite & Ferrite Heads.
Features included logic controls, closed-loop dual-capstan drive with AC servo control, 4 heads and remote control option. Relative to the  competition in this price point, its features were a bit sparse but it had all you needed to do get the job done.

From the promotional material – The SONY TC-R7-2 achieves an incredible wow and flutter of 0.018% (WRMS) at 38 cm/s and 0.04% (WRMS) at 19 cm/s. This is achieved via a Closed Loop Dual Capstan Tape Drive System. One capstan extends from the motor shaft itself, eliminating intervening gears that can hamper speed accuracy. The other tape drive capstan connects through an extremely steady belt-drive inertia wheel. For a “mirror image” of the original signal, Sony’s exclusive Phase Compensator Circuit comes closest achieving this by rectifying phase distortion and producing sound quality virtually identical to the original source.

 

Available in Japan one year earlier, the 100v Model is the Sony TC-R7-2

 

Additional Info

Price when new (in the UK) £650
Track system Half-track stereo record & playback, quarter-track stereo playback
Heads Four – erase, record, half-track playback and quarter-track playback
Motors 3 motor, belt driven system
Maximum Reel Size 10½ ”
Tape Speeds  7½ & 15 ips (3¾ & 7½ ips version available)
Rewind Speed 150 seconds (1200′ tape)
Frequency Response (3dB) 30Hz – 22kHz at 15 ips
Wow & flutter 0.018% @ 15 ips
Speed tolerance 0.5% at 15 ips
Crosstalk 55dB @ 1,000Hz
Harmonic distortion 0.5% at 15 ips (FeCr tape)
Bias frequency 160kHz
Inputs line: 60mV, 100k Ohms; microphone: 0.2mV, low
Outputs line: 0.435V with control at detent, 0.775V – headphones: 35mV, 8 Ohms nominal
Dimensions 20½ x 17½ x 9¼ ” (521 x 444.5 x 234.9 mm)
Weight 58.5 lbs (26.6kg)

Capstan Belt  FR-19.6

Half-track stereo record & playback, quarter-track stereo playback

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