The Revox B77 tape recorder was presented at the 1977 audio trade shows together with a completely new hi-fi line.
This included the B750 amplifier and the B760 FM tuner, as well as the B790 record player and the BX series loudspeaker cabinets in the new design.
In addition to the standard version with speeds of 9.5/19 cm/s, the following models were available: B77-HS with 19/38 cm/s (high speed), B77-LS with 4.75/9.5 cm/s (low speed), B77-SLS with 2.38/4.75 cm/s (super low speed for monitoring tasks), B77-AUT0 with automatic recording start as well as three versions with additional pilot head for simple to sophisticated slide projector control. B77 synch tape recorders had a clock track amplifier for professional synchronous recording from the recording head. Finally, the B77-DOL offered separate Dolby TM-B processors for recording and playback (i.e. dolbysed back-band control) for the highest noise voltage ratios (19 cm/s, half track, better than 74 dB).
Value preservation for generations: And even today, a B77 tape recorder can be integrated into the latest Revox Multiuser System, for example, and even controlled via Revox App.
Because sustainability is important to us.
The B77 MKI was built from 1977-1980. As a manufacturer, we have been overhauling our Revox devices with original spare parts for decades. You will receive the B77 MKI tape recorder from us completely overhauled and refurbished. All sound heads are replaced by new ones.
The impressive end result is a product in mint condition.
After ordering, you will receive a certificate.
The unit has a 2-year warranty.
Accessories
Technical details
dimensions
weight (kg): 17
depth (mm): 207
height (mm): 414
width (mm): 452
Drive
Three-motor drive 2 AC coil motors 1 AC sound motor electronically controlled
Noise-to-voltage ratio (according to ASA-A, measured over band)
>64 dB (9,5cm/sec), >67 dB (19cm/sec)
Frequency response over tape
30 Hz bis 20 kHz + 2 dB bis - 3 dB, 30 Hz bis 16 kHz + 2 dB bis - 3 dB
Tape speed
HS 19,05/38,1 cm/s, NS 9,5/19,05 cm/s, LS 4,75/9,5 cm/s, SLS 2,38/4,75 cm/s
power consumption
max. 80 VA
Synchronisation fluctuation
38 cm/s < 0,06 %, 9.5 cm/s < 0,10 %, 19 cm/s < 0,08 %
Equipment
11 ICs, 1 optocoupler, 4 triacs, 60 transistors, 33 diodes, 5 LEDs, 2 bridge rectifiers, 3 relays
Slip
max. 0,2 %
Rewind time
135 sec. for 1100m tape
Coil size
up to 26.5 cm (10.5 inch)
Technical details
dimensions
weight (kg): 17
depth (mm): 207
height (mm): 414
width (mm): 452
Drive
Three-motor drive 2 AC coil motors 1 AC sound motor electronically controlled
Noise-to-voltage ratio (according to ASA-A, measured over band)
>64 dB (9,5cm/sec), >67 dB (19cm/sec)
Frequency response over tape
30 Hz bis 20 kHz + 2 dB bis - 3 dB, 30 Hz bis 16 kHz + 2 dB bis - 3 dB
Tape speed
HS 19,05/38,1 cm/s, NS 9,5/19,05 cm/s, LS 4,75/9,5 cm/s, SLS 2,38/4,75 cm/s
power consumption
max. 80 VA
Synchronisation fluctuation
38 cm/s < 0,06 %, 9.5 cm/s < 0,10 %, 19 cm/s < 0,08 %
Equipment
11 ICs, 1 optocoupler, 4 triacs, 60 transistors, 33 diodes, 5 LEDs, 2 bridge rectifiers, 3 relays
Slip
max. 0,2 %
Rewind time
135 sec. for 1100m tape
Coil size
up to 26.5 cm (10.5 inch)