VINTAGE Звуковое оборудование

REVOX A77 MKIV 2 TRACK

Published on: 01 февраля 2010
5.00


Раздел: Magnetofony Szpulowe
Производитель: Revox
Created by: misiekmodo PL

COM_DJCATALOG2_FULL_TEXT:

Revox A77 w wersji MKIV rok produkcji 1974. Wersja 2 Track.

REVOX PERFORMANCE SPECIFICATIONS
FOR REVOX A77 MK I / REVOX A77 MK II / REVOX A77 MK III / REVOX A77 MK IV

Mechanical

Tape Transport
Three Studer eddy current motors. Electronically governed capstan motor. Electronic speed change. Solenoid operated via 3 relays.

Tape Speeds:
3.75 and 7.5 ips (9,5 cm and 19 cm/sec.) ± 0.2%
High speed Version: 7.5 and 15 ips (19 cm and 38 cm/sec.) ± 0.2%

Wow and Flutter:
max. ± 0.04% at 15 ips
max. ± 0.08% at 7.5 ips
max. ± 0.1% at 3.75 ips (Weighted at DIN Standard 45507)

Tape Slip:
Less than 0.2%

Reel Diameter
Maximum 10.5\" (26,5cm)
(Minimum hub diameter 23/8 inches)

Forward / Rewind
Fast winding time for 1800\' (1100m) is 92 seconds

Tape Heads
Three (Separate precision erase, record and playback heads.) Patented \'True Radius\' design ensures excellent S/N ratio and head wrap

Guide System:
The Heads, the capstan drive, and the machines tape guides are mounted to a one-piece casting to maintain precise alignment.

Operating position:
horizontal or vertical

Electrical

Monitoring
Individual stereo record and playback heads with separate preamps, plus separate record and play circuits permit full source-tape monitoring.

Equalization:
NAB Standard on both record and playback at all speeds.

IEC Standard switchable on playback only.

Record Playback
Frequency Response:
(Based on Revox 601)


15 ips - 30 Hz - 20 kHz ± 1.5 dB
7.5 ips - 30 Hz - 20 kHz + 2 / - 3 dB
3.75 ips - 30 Hz - 16 kHz + 2 / - 3 dB

Signal to noise:
2-Track:
15 ips - better than 66 dB
7.5 ips - better than 66 dB
3.75 ips - better than 63 dB

4-Track:
15 ips - better than 62 dB
7.5 ips - better than 62 dB
3.75 ips - better than 59 dB

Add 4 dB to the above figures with Dolby on, referenced to less than 2% THD
(Reference with Scotch 203 or Revox 601 or equivalent. Weighted as per CCITT C-curve to exclude supersonic bias noise.)

Distortion at full modulation
at 1 kHz:
Max. 2% at 15 ips and 7.5 ips.
Max 3% at 3.75 ips.

Crosstalk at 1 kHz:
Stereo, better than 45 dB
Mono, better than 60 dB

Bias frequency:
120 kHz, push-pull oscillator. Designed for low noise, high output tapes

Input sensitivity per channel
Microphone, switchable LOW/HIGH
LOW: 50 - 600 ohms (unbalanced) 15mV
HIGH: up to 100 K ohms 2.5 mV
RADIO: 33 K ohms 2.5 mV
AUX: 1 M ohms 33 mV

Output per channel
OUTPUT: max 2.5 rms @ 600 ohms
RADIO: max 1.2 rms @ 2.5 K ohms
PHONES: 200 - 600 ohms (no electrostatic)

Semiconductor complement:
54 Transistors; 32 diodes, 4 silicon rectifiers, 1 CdS-cell

Remote control:
Fully electric for all operation functions.

Output Amplifiers:
Plug-in optional. 2 x8 watts continuous rms power, 2 x10 watts music power as per IHFM, 4-16 ohms, less than 1% distortion.

Power Supply:
Electronically stabilized.

Mains voltages:
110, 130, 150, 220,240, 250V / 50-60 Hz.

Power consumption:
70 ... 100 watts

Dimensions:
(Wooden Cabinet)
161/4\" W x 141/8\" H x 81/2\" D.
(Measurements include knobs but not reels.)

Weight:
Approximately 34 pounds (» 15 kg)
Задать вопрос по этому товару
Ocena
5.00
Log-in to add review

Users' reviews

Name: czolgista778
11.07.2011
5.00

Uwaga

Wymien jak najszypciej te 4 kondy 0,47uF Rifa Miniprint bo zrobia ci zwarcie i strzela, sa wypelnione smola.

Mam 2 sciezkowego A77 MKII z 1969r. w stanei sklepowym w ktorym wlasnie padly te Rify, juz tydzien wietrze go na dworze i bardzo ciezko pozbyc sie tego zapachu.
Name: misiekmodo
02.02.2010

Tamtego Revoxa sprzedałem był to 4 track a chciałem mieć właśnie 2 tracka więc postanowiłem zrobić zamianę wygląda może identycznie ale gra o wiele wiele lepiej :D jednak czuć różnice i wzrost dynamiki, w porównaniu do konstrukcji czterościeżkowych.

Pozdrawiam
Name: elektrospiro
02.02.2010
5.00

maszyna pędząca - revox

piękny klasyk, mażą mi się szpulovce, mam tylko jednego. gratool.
Name: piootr
01.02.2010
5.00

widze drugi do kolekcji :)

musi się ładnie komponować z tym drugim REVOX, gratuluje widzę ze nie próżnowałeś :)
Log-in to add review

Ostatnio dodane Katalogi

Ostatnio dodane posty na FORUM

Popularni użytkownicy

Попул?рные профили Про?мотров
piootr 565
chrzan49 316
Laslo 105
Patrick 100
mareks 99
damian 79
Pumcat 70
elektrospiro 45
Marek-41 41
zbychu 40
Sonix 39
WoleMerce 38
chuck4 32
zaffff 27
marek_c4 27
yellow1 21
ogr30 21
piotr_3miasto 19
DARUTOM 19
Excalibue 15