Elmwood Modena 60 Bias Control Location
Caution: High Voltages and deadly Amperage present in any tube amplifier!!
This picture was taken with the front of the amp pointing towards me.
The back of the amp is in the UP direction in these pictures.
Once inside the Elmwood Modena 60,
You will see two small boards on risers. remove the two Phillip head screws and the star washers.
Raise the board evenly with a little pressure.
Here is the Bias Potentiometer with the board removed.
Plate Voltage is approx 466 volts