orange ECC83 Schematics
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
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
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