Page 1
ECC83
Volume
1M - log
2.2k
560
10n
560
Feedback from Power stage
680p
100
68n
1M
1M
470
+454v
100k
68n
68n
100k
+454v
Out to Power stage
220k
10µ
+
-40v
220k
Out to Power stage
22k
15k
+
10µ
-100v
Ground
Page 2
ECC83
+392v
Guitar In
68k
1M
1.8v
2.2k
220k
+
47µ
100k
330p
+
250k - log
Volume
Trebble
+
47n
1M - log
100n
220k
Bass
250k - log
ECC83
220k
+
2.2k
1.8v
+
47µ
68n
220k
To Mixer
+392v
Guitar In
68k
1M
1.8v
2.2k
220k
47µ
+
100k
330p
+
250k - log
Volume
Trebble
+
47n
100n
1M - log
+
Bass
250k - log
330p
Orange Preamp Section - Channel II
+
Middle
10k - log
2.2k
220k
1.8v
+
47µ
68n
220k
To Reverb
Page 3
2.2k
2.2k
1k
1k
Power Section
Orange 125mk3
4x EL34
2.2k
1k
Blue
Purple
Gray
High Voltage
To Printed Board,
2.2k
1k
Black
To Printed Board, Power Amp Drive
Brown
Gray
Brown
Aux
Speaker
Blue
Black
Ground
Output
Yellow
+
+
Black
Blue
Red Red Gray
To Printed Board Rectifiers
Black
6.3v
Mains
Orange
Main
Page 4
To Power Stage
Slave Out
100k - lin
Return
Reberb
Out to
Reverb
Ground
Purple
Blue
Brown
Reverb Level
100k
Black
560
+
10
Purple
Blue
Red
Purple
1M
Blue
220k
68n
100n
560
100
470k
Red
20n
68n
620
+
10
22k
15k
220k
68n
1M
2.2k
100k
ECC83
Reverb Return
100k
1k
470n
10n
ECC83
Reverb Driver
470
1M
68n
-100v
68n
2.2k
92M
-40v
100k
Gray
+ High
Blue
Voltage
+
16
Foot Switch
1.8v
68n
100k
+
32
454v
1k
100k
100k
ECC82
Power Amp Driver
220k
68n
47
1k
100k
1k
1M
100k
Yellow
6.3V
100
100
+
10k
16
392v
+
2.2k
68n
220k
100k
680p
220k
33M
+
680p
220k
220k
Yellow
+
32
92M
220k
Red
100k
ECC83
68n
68n
Chan I
ECC83
2.2k
Gray
Red
3x
BA127
3x
BA127
Orange 125mk3
Guitar Preamplifier
+
47
22n
10n
220k
220k
2.3v
10n
1.8v
2.2k
100k
1.8v
2.2k
100k
2.2k
2x1M
47
47
+
+
47n
100n
330p
47n
100n
330p
Red1
Red2
Black
1M
Black
470k
Orange
Orange
Blue2
Yellow
Brown
Brown
Pink
Purple
Red
Red
Red
Red
Blue1
Yellow
220k
Speed
DepthMaster
220k
VolumeTrebble Bass
Middle
Guitar In
68k
VolumeTrebble Bass
250k - log 250k - log 1M - log 250k - log 250k - log 1M - log10k - log 1M - log 100k - lin 2M - lin
Guitar In
68k
Tremolo
ECC83
Chan II
2.2k
+
47
1.8v
1.8v
+
47
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