[Elecraft] Audio volume problems

[Monty Shultes]

Another vote here for a cracked knob.  My RF Gain control smaller knob cracked recently.  Gorilla glue put it back together .
Monty K2DLJ

>> Many K3 users have seen this same rotation problem with the AF/SUB and
>>> RF/SUB controls.  Try adjusting the set screw(s).  If that doesn't
>>> work, you may need to contact support for new ones.  With early K3s,
>>> there were some problems with these controls.