Ampeg HERITAGE B-15 - Manual (Page 10)

Heritage B-15 Bass Amplifier
10
Heritage B-15 Block Diagram
1/2 6SL7 V1B
1/2
TREBLE
BASS TONE CONTROL
CIRCUITRY
1 2
1964
INPUTS
1 2
6SL7 V1A
1/2 6SL7
1/2 6SL7
5AR4
1/2 6SL7 V2B
1/2
V6
VOLUME
VOLUME
TREBLE
BASS TONE CONTROL
CIRCUITRY
1966
INPUTS
6L6GC
6L6GC
6SL7
POWER SWITCH
1964 BIAS / STANDBY / 1966 BIAS SWITCH
8 Ω 4 Ω 4 Ω
EXT. AMP
SPEAKER OUTPUTS
V2A
V3A V3B
V4
V5
B+
TO FILAMENTS