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Sound Rating: 7 / 10 # Owners: 1
Relaibility Rating: 9 / 10 Views: 370

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Technical Details

Brand: Revox

Model:A77

Category:High Fidelity

Application:Consumer

Electronic:Solid State

Country of Manufacture:Switzerland

Release dates:1972-1972

Tracks:1/4 Rec/PB

Speeds: 3 3/4, 7 1/2

Max Reel Size("): 10.5"

Number of heads: 3

Head Composition: Permalloy

Head Configuration: Stereo

# Motors: 3

Auto Reverse?:No

Voltage(s): 110-120v, 220-240v

Frequency Response:7½ ips: 30Hz - 20kHz

Wow and Flutter:0.08% max at  7½ ips and 0.1% at 3¾ ips

Signal-to-Noise Ratio:better than 58 dB at 7½ ips and 56 dB at 3¾ ips

Sound quality rating:7 / 10

Long-term reliability rating: 9 / 10

Additional Details

Description

The definitive reel to reel of the late 1960s – early 70’s. You couldn’t walk into a radio station or recording studio without seeing at least one….
First produced in 1967 the A77 was a true semi-professional recorder.  Solenoid transport controls, 10½” reel capability, three heads, NAB/IEC equalisation, servo-capstan drive and a choice of 15 and 7½ ips or 7½ and 3¾ ips. Rugged three-motor design and easy tape handling made these machines a hit in the late sixties and many found their way into radio stations and recording studios where some are still doing service.

Additional Info

Distortion at full modulation: 2% at 7½ ips and 3% at 3¾ ips (maximum) / Crosstalk: mono better than 60 dB, stereo better than 45 dB / Bias frequency: 120kHz, push-pull / Semiconductors: 54 transistors, 32 diodes, 4 silicon rectifiers, 1 photo resistor / Rewind speed: 62 seconds for 1200 ft / Audio output power: 2 x 10 watt plug-in optional amplifier boards / Inputs: Mic (switchable) low: 50 – 600 ohm, 0.2 mV. high: 100 Kohm, 2mV Radio: 2 mV 33 Kohm), Auxiliary: 40 mV 1 Mohm) / Outputs: line: 2.5 V / 600 ohms (max). radio 1.2 V / 2.5 Kohms (max) / Speaker(s): four with suitcase model only / Dimensions: 14½ x 16¼ x 7″ (388 x 413 x 178 cm) / Weight: approx. 34 lbs (15.5 kg) / half-track stereo with quarter-track version released in 1968

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