Master Volume Installation Instructions Parts required: 250KA Dual Potentiometer x 1 2.2M Resistor x 2 Dual conductor shielded wire x approximately 2FT Step 1: Remove the (2) 220K resistors that are connected to G1 & G2 on layout diagram. Step 2: Unscrew board from stand-off's. Gently lift board and cut off the wires that are connected to G1 & G2. Step 3: Unsolder these wires from pin 5 on each power tube socket. Step 4: Remove the speaker jack that is furthest from the impedance selector switch, and install the Dual 250K A potentiometer. Step 5: Connect the Master Volume control as shown on the modified layout diagram.
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