[joepho]

Have a model 41-290.  The last station preset button is stuck in the "on" position.  Any advice on unsticking it?

[morzh]

Have the radio, never had the switch problem.

Is it physically stuck (not going back-forth) or the actuator is good and contacts don't move?

Depending on what it is, maybe a contact cleaner. In case some oxidation crud holds it. If the latter (moves but no switching) will need disassembly as that would be indicative of the contacts existing separately from the actuator.

[joepho]

It is physically stuck. Other swiitches appear to work fine.

[morzh]

Then use WD40 or something to unstuck it first.
Spray inside, work it until unfrozen.