Mesa/Boogie F-100

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PARTIAL VIEW OF CHASSIS
BACK EDGE OF CHASSIS
F-100 TUBE TASK CHART
12AX7
(4)
V 4 V 3
V 2
V 1
B A
B A
B A B A
(Each 12AX7 contains two separate Triodes)
MUTE SWITCH
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V1 A= Input Stage both Channels V1 B= Clean Channel V2 A= 2nd Input Stage bothChannels V2 B=Channels 2 & 3 Boost Stage V3 A=Channels FX Send
V3 B= FX Return V4 A= V4 B=
Phase Splitter / Output
Description of Tube Functions
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