MARSHALL
JCM 900
Mark III

Model 2500
~50 Watt Head~


YEAR:

1990

SERIAL NO:

Y32100

SPEAKERS:

n/a

POWER: 50 watts
CHANNELS: Dual master volumes
CONNECTIONS:

1-instrument input, effects send, effects return, recording compensated output, 2-speaker outputs

CONTROLS: presence, bass, middle, treble, volume (B), volume (A), sensitivity, volume
TUBES: 3-12AX7, 2-EL34
MISC: Effects loop, high-low switch to set to half power (25w), impedance selector

schematics
preamp-(JMP51B pcb)
poweramp (JMP50B pcb)



Marshall-2500-Back.jpg (464150 bytes) Marshall-2500-inside.jpg (532627 bytes)
click for larger view






 

HOME  |  GUITARS  |  AMPLIFIERS  |  EFFECTS  |  MISC  |  FILES  |  LINKS

©2006 Gary Brookshire