Revox A77 Service Manual

INDEX
QTY
PART NAME
ORDER
NUMBER
E
Drive, Tape & Headblock
01 1
Chassis, cast, tape drive, with pressure lever sintered bearings 1.077.125
02 4 Cup, tape guide 1.736.222 - 04
03 2
Collar, tape guide
1.736.222 - 05
04
2
Bushing, threaded 1.077.120 - 02
05 4 Screw M 4x8
21. 01.0455
06 1 Post, tape guide
1.077.120 - 01
07 2 Screw M 3 x 8
21. 01.0355
08 1 Guide, tape, assembled
1.077.145
09
1
Bracket, assembly
1.077.150
10 1
Spring, compression
1.077.145 - 03
11
2
Disc , guide
1.077.145 - 01
12
1
Sleeve, spacer
1.077.145 - 02
13
1
Nut, hex M 3
22. 01.5030
14
1
Lever, tape lift, assembled
1.077.175
15 1
Screw, spec
1.077.120 - 03
16
1
Washer
1.077.120 - 04
17
1
Bracket
1.077.133
18
1 Socket, lamp 53. 04.0102
19
1
Lamp ( 24 V, 30 mA ), 51. 02.0140
20 1
Resistor, photoelectric ( end- of- tape switch ) 1.077.135
21
1
Base plate, assembled ( 2 - hole head- fastening )
1.077.156
22
1
Base plate, assembled ( 1 - hole head- fastening )
1.077.157
23 2 Housing, shield, ext I 2 - hole head- fastening 1
1.077.155 - 03
24 2 Housing, shield, ext ( 1 - hole head- fastening )
1.077.155 - 05
25 2 Housing, shield, int ( 2 - hole head- fastening )
1.077.155 - 04
26 2
Housing, shield, int ( 1 - hole head- fastening )
1.077.155 - 06
27
1 Lid, shield, playback head, assembled
1.077.165
28
1 Head, playback, 2 - track, ( 2 - hole head- fastening )
1.116.026
1
Head, playback, 4 - track, ( 2 - hole head- fastening )
1.116.046
29
1 Head, playback, 2 - track, ( 1 - hole head- fastening )
1.116.027
1
Head, playback, 4 - track, ( 1 - hole head- fastening )
1.116.047
30 1 Head, record, 2 - track, ( 2 - hole head- fastening )
1.116.021
1
Head, record, 4 - track, ( 2 - hole head- fastening ) 1.116.041
31
1
Head, record, 2 - track, ( 1 - hole head- fastening ) 1.116.022
1 Head, record, 4 - track, ( 1 - hole head- fastening )
1.116.042
32
1 Head, erase, 2 - track
89. 01.0301
1 Head, erase, 4 - track 89. 01.0302
33 1
Shim, 4 - track head 1.077.131 - 01
1 0.1 mm shim, brass for elevation adjustment of erase head
1.010.006 - 23
,
PL 6

Revox A77 Specifications

General

Wow and Flutter	0.08% (7 1⁄2 ips)
Frequency Response	30Hz to 20kHz (7 1⁄2 ips)
Signal to Noise Ratio	60dB
Type	Reel-to-Reel Tape Deck
Track System	4-track, 2-channel stereo/monaural
Reel Size	Up to 10.5 inch reel
Motor	2 x reel, 1 x capstan
Inputs	Mic, Line
Outputs	Line
Tape Speed	3 3⁄4 and 7 1⁄2 ips