I sent my empeg for repair a few months ago. Since then, I havn't taken the knob off until now. It may be possible the knob was swapped then.

If I put the knob on without the washer, it is too loose to use.

-Rob R
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12GB MK2 Blue 090000736 (6166 in the queue)
10GB "Backup" MK2a Blue 030102953