Has anyone found a solution for the worn pop buttons found in the 80's 6000? It is a handfull that are worn to the point that the panel had been pushed in slightly next to the standby button. Can't find a supplier of anything suitable but they must be available! Looked at 0.5mm SMT versions although haven't worked out if these would be a little too high, again cannot find a supplier atm..
The only other option I can think of is rather drastic and would involve drilling a hole in the board and counter sinking (or similar) a tactile switch to the require height - a lot of work and I would feel obliged to do all 23 buttons