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PAGE 12
6L6
12AX7
(4)
V 4 V 3
V 2
V 1
PARTIAL VIEW OF CHASSIS
BACK EDGE OF CHASSIS
F-50 TUBE TASK CHART
B A
B A
B A B A
(Each 12AX7 contains two separate Triodes)
MUTE SWITCH
6L6
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