Revox - A-77 MK4 2-track Console a bobina aperta da 26 cm

Rare steel case version for studio use.
Build in etc.
This one was owned by the NOB (Dutch Broadcast Organisation)

Classic Vintage Revox A-77 MKII in very good to execellent condition.
2-track 26cm reel recorder with 3 heads for real-time monitoring.
Direct drive 3 motors!
.
Including 2 big Revox 26 cm reels.
Including 1 very good BASF broadcast tape for daily use. They are the best!

The old RIFA’s are all replaced.
New stop lamp.
Heads are as new. No wear!

Speed checked exactly good.
Recording and playback tested and sounds perfect.

Including power cord.

Pictures are leading
Carefully shipped but very heavy!
No amplifiers on board.

Manufacturer: Revox
Model: A 77 Mk I MK II, MK III and Mk IV
Years of manufacture: 1967-1981
Manufactured in: Germany / Switzerland
Colour: grey, silver, housing walnut
Remote control: Cable remote control 5 m or 10 m (accessories)
Power consumption: 70 W / with power amplifiers max. 100 W
Dimensions, horizontal): 413 mm × 359 mm × 215 mm (W × H × D)
Weight: approx. 15 kg
Original price approx.: 1700 DM (list price)

Connections

Number of outputs: 3
2 × output (Cinch): 2.5 V / Ri 600 Ω
1 × Radio (DIN): 1.2 V / Ri 2.5 kΩ
1 × Phones (jack 6.3 mm): 200-600 Ω
a
Number of inputs: 3
2 × MIC (jack 6.3 mm / Cinch) Low: 0.15 mV / 50-600 kΩ / High: 2.5 mV / up to 100 kΩ
2 × Aux (Cinch): 35 mV at 1 MΩ
1 × Radio (DIN): 2.5 mV at 33 kΩ

Technical Data

Max. Coil diameter: 26.5 cm (10.5")
Drive: 3 external rotor AC motors (direct drive)
Tone motor controlled via highly stable oscillator and tachogenerator
2 asynchronous winding motors
Heads: 3
Tracks: 2 or 4, depending on version
Tape speeds: 9.5 and 19 or 19 and 38 cm/s, depending on the version, ±0.2
Slip: 61 dB
at 19 cm/s >61 dB
at 9.5 cm/s >58 dB
External voltage spacing: n.a.
Distortion: 60 dB, Stereo: >45 dB (1 kHz)
Erasure attenuation: ≥80 dB
Premagnetization and erasure frequency: 120 kHz

Special Features

Additional plug-in power amplifier 2 × 8 watts at 8 Ω; (accessories).
Versions with wooden cabinet, case and as built-in chassis.
Versions with Dolby-B-NRS , ORF (studio version HighSpeed , symm. In/Out)