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Revox B77

Rullbandspelare

More details

Klarna  Från SEK 411 /mån

SEK 8,900

1 Item in stock

Warning: Last items in stock!

Gott skick.  B77 4 TRACK. Servad oktober 2019. Nya kondingar, kalibrering. Pris utan band och NAB. En skada på chassi (foto) annars bra skick. 

revox

 

Technical Data
Revox B77
Stereo Tape Recorder

Tape transport mechanism:

3-motor tape drive, 2 AC driven spooling motors; 1 AC driven capstan motor, electronically regulated

Tape speeds:

3 3/4 and 7 1/2

Tolerance from nominal:
With external accessory, speed variable:

± 0.2%
from: 2.5 ... 11 ips (3.75/7.5 ips machines)

Wow and flutter
(as per DIN 45507/ consistent with EEE standard 193-1971):

at 3.75 ips less than 0.1%
at 7.5 ips less than 0.08%

Tape slip:

Max 0.2%

Reel size:

Up to 10.5 inch diameter
(min. hub diameter 2.36 inches)
tape tension switchable (for small hub diameters)

Winding time:

Approx. 135 sec for 3600 ft of tape

Tape transport control

Integrated control logic with tape motion sensor provides for any desired transition between different operating modes. Contactless electronic switching all motors. Remote control of all functions and electronic timer operation are possible.

Equalization
(as per NAB):

3.75 ips: 90 µsec / 3180 µsec
7.5 ips: 50 µsec / 3180 µsec

Frequency response
(measured via tape, at -20 VU):

At 3.75 ips:
30 Hz ... 16 kHz +2 / -3 dB
50 Hz ... 10 kHz 
± 1.5 dB

At 7.5 ips:
30 Hz ... 20 kHz +2 / -3 dB
50 Hz ... 15 kHz 
± 1.5 dB

Peak recording level:

514 nWb/m corresponds to 6 dB above 0 VU

Level metering:

VU meter as per ASA standard with LED peak level indicators

Distortion

 

At 0 VU
(257 nWb/m)

At 0 VU + 6 dB
(257 nWb/m)

 

At 3.75 ips:

< 1%

< 2.5%

 

At 7.5 ips:

< 0.6%

< 1.5%

 

 

 

 

Signal to noise ratio
(weighted as per ASA-A, measured with tape)

Half track

At 3.75 ips better than 64 dB
at 7.5 ips better than 67 dB

 

Quarter track

At 3.75 ips better than 60 dB
at 7.5 ips better than 63 dB

Crosstalk
(1000 Hz):

Stereophonic
Monophonic

Better than 45 dB
Better than 60 dB

Erase depth:

At 7.5 ips better than 75 dB

Inputs per channel

 

 

MIC (unbalanced)

Position LO:

0.15 mV / 2.2 kOhms
for 50 ... 600 Ohms microphones

 

Position HI:

2.8 mV / 110 kOhms
for microphones impedances up to 20 kOhms

 

Radio:

2.8 mV / 20 kOhms

 

AUX:

40 mV / 220 kOhms

 

Overload margin on all inputs:

40 dB (1:100)

Outputs per channel
(level at 6 dB above 0 VU / 514 nWb/m):

OUTPUT

1.55 V, internal resistance 390 Ohms adjustable with preset control, max. attenuation -26 dB (Rj max. 1.5 kOhms)

 

RADIO:

1.55 V, internal resistance 4.7 kOhms adjustable with preset control, max. attenuation -26 dB

 

PHONES:

(2 x) max 5.6 V, internal resistance 220 Ohms, short-circuit proof, optimum matching impedance 200 ... 600 Ohms

Connectors for:

Remote control of tape transport functions
Remote control of variable tape speed
Slide projector or crossfade unit
(electronics optional)

Semi-conductor complement:

11 IC, 1 opto-coupler, 4 Triac, 60 transistors, 33 diodes, 5 LED, 2 full wave rectifiers, 3 relays

Electric current supply
(voltage sector):

100,120,140,200, 220,240 V
50 ... 60 Hz, max 80 W

Main fuse:

100 ... 140 V: 1 A slow-blowing
200 ... 240 V: 0,5 A slow-blowing

Weight:

Approx. 37 lbs. 7 ozs (17 kg)

Dimensions (W x H x D):

17.8 x 16.3 x 8.14 inches
(452 x 414 x 207 mm )

Required clearance for 10.5 inch reels:

Max width: 21.2 inches (538mm)
Max height: 18.25 inches (463.5 mm)

 



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Revox B77

Revox B77

Rullbandspelare

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