System Block Diagram:

 

 

 

6L6

 

 

 

V3

 

 

12AX7A

 

GUITAR

12AX7A

PHASE

 

INPUT

V1A

SPLITTER

 

V2A

 

 

 

 

 

VOLUME

TONE

 

 

 

12AX7A

SPEAKER

ACCORDIAN

 

PHASE

 

 

SPLITTER

 

INPUT

 

 

 

V2B

6L6

 

 

 

 

 

 

V4

REVERB

12AX7A

 

TREMOLO

 

OSCILLATOR

 

V1B

SPEED INTENSITY

11

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Image 11
Ampeg SJ-12T manual System Block Diagram