27.Fuse for Output Tube V1 The 250 mA, Micro fuse protects the amplifier circuit from overcurrent conditions in the output tubes. When an output tube fuse blows, or if a fuse is not in its socket, a red LED indicator at the front of the corresponding tube socket lights. If a fuse blows, disconnect power from the amplifier, either at the IEC power socket or the wall outlet before remov- ing the old fuse. If the replacement fuse blows when you reconnect power and turn on the amplifier, replace the output tube.
28.Fuse for Output Tube V2
29.Bias Meter The Bias Meter shows the plate current of the output tube currently selected by the BIAS MONITOR switch. When the BIAS MONITOR switch is set to OPERATE, the meter should remain at 0 mA.
30.Fuse for Output Tube V3
31.Fuse for Output Tube V4
32.V3 Bias Adjust The V3 Bias Adjust control sets the plate current of output tube V3.
33.V4 Bias Adjust The V4 Bias Adjust control sets the plate current of output tube V4.
