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Vox Valvetronix Replacing a Bad Volume Pot
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The control PCB (the green board) is now free and you can back it away from the top panel of the Valvetronix chassis.

Freed Control Board

There's enough slack in the cables to comfortably work on both sides of the control board.

Positioning the Boards

The pot in the foreground of this photo is the master volume control.

It's been causing the amp's sound to cut out and to only work on part of its rotation.

Bad Master Pot

The pot has three solder points (right).

Solder Points

Here, the broken pot is removed and the circuit board's solder pads are cleaned.

Bad Pot Removed

Our REPLACEMENT POT has an anti-rotation tab that isn't used with this amp.

Twist off the tab using a small pliers.  Otherwise, the pot won't sit flat against the Valvetronix top panel.

Anti-Rotation Tab Tab Twisted Off

Here the new, 10k linear-taper pot is installed and soldered in place.

Replacement Pot Installed

Vox Valvetronix
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