Mesa/Boogie LoneStar Amplifier - Manual (Page 25)

PAGE 21
LONESTAR
6L6
6L6
REAR OF CHASSIS - viewing chassis from its bottom side
NOTE: POWER TUBES ARE HOT ! BEFORE CHANGING TUBES TURN POWER SWITCH TO OFF AND LET COOL OR USE A RAG FOR PROTECTION.
TUBE TASK CHART
A
B A
B
A
B
A
B
A
B
RCA Jacks
for Reverb
6L6
6L6
5U4
COOLING FAN
Description of Tube Functions
V3 B = FX Loop Return V4 A = Reverb Return V4 B = Reverb Drive V5 A = Phase inv/driver V5 B = Phase inv/driver
V1 A = CH2 Drive Stage V1 B = Input Gain Stage V2 A = 3rd Gain Stage V2 B = 2nd Gain Stage V3 A = FX Loop Send
V
1
V
2
V
3
V
4
V
5