Ampeg J-20 JET Owner's Manual download pdf (Page 10)

J-20 Jet All-Tube Guitar Amplifier with Tremolo

10

System Block Diagram

NORMAL

INPUT

BRIGHT

INPUT

VOLUME TONE

12AX7A

V1A

12AX7A

V2A

12AX7A

TREMOLO

OSCILLATOR

V2B

INTENSITY

8 OHM

INTERNAL

SPEAKER

8 OHM

EXTENSION

SPEAKER

12AX7A

PHASE

SPLITTER

V3A

12AX7A

PHASE

SPLITTER

V3B

6V6

V4

6V6

V5

SPEED

12AX7A

V1B

1 2 ... 5 6 7 8 9 10 11 12

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