5
Vacuum Tube Integrated Amplifier
No
.
300B
12AU7
12AX7
Overview From The Top:
Name
Sign
Description
Power Tube
300B
Power Tube
Twin-Triode
12AU7
Drive Tube
Twin-Triode
12AX7
Voltage Amplification Tube
1
2
3
5AR4
4
1
2
3 4
Rectifier Tube
5AR4
5
5
NFB
Switch
NFB SWITCH(ON/OFF)
5AR4
Rectifier Tube
If
Switch positions at
the
operation state is
-3dB while if positions at
the operattion state is 0dB.
NFB
ON
NFB
OFF