Revox A77 Service Manual

Loudspeaker Amplifier
1.077. 850
Amplificateur de haut-parleur
4,7 p F
1 3 1-4b r.
C 901
8
I 47K
R 902
R904
47 K 47K
R901 R903
1K 6,8K 680 BC107
Q903
R908
10pF r- 1 T
C 904
560 pF
BC177
I T 47pF
C902
680
R906
2 20pF
R909
BC177
47pF
C911
Ti
R910
BA127
D901
D902
BA 127
220
R911
BC107
3,3K 680 1
R907 8920 R917
SDT 9201
Q 905
SDT 9201
Q906
0,1 p F
C905 II.1m
o2500pF
1 mC 907
2500 pF
cz!= C 908
125 AT
>1
F901
B40C2 200
903
-23 V
(-19V)
2
10
9
32V ,,
2
8
9
10 8V
13 2 V
Loudspeaker Amplifier
1.077. 850
Amplificateur de haut-parleur
3.72
Diag. 9

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