[R-390] R392 bandwidth switch

[Guido Santacana]

 My R392 bandwidth switch is stuck on 4kHz because the clamp that holds the
switch gear in place cracked. The switch shaft goes through the crystal
calibrator subchassis and then engages the real switch using a gear
mechanism. One of the gears is held to the real bandwidth shaft by a clamp
like those use in this radio family. Anyone knows the size of the clamp?

Thanks & 73s

Guido Santacana KP4FAR