[GreenKeys] Model 15 Associated Press with Model 19 keyboard...can it work?

[E.]

Oil and grease are your friends here ;) .  I prefer a light high-mileage full-synthetic motor oil (5W-40) when it comes to frozen or semi-frozen parts… the detergent in it helps loosens things up nicely.


> On Feb 23, 2026, at 9:19 PM, Johannes Eggers <johannes.eggers at gmail.com> wrote:
> 
> The 15 definitely has contact fingers at the bottom that hopefully match the keyboard.  I have to dig up the 15, it's in a box on some pallet on some rack somewhere in the warehouse:-). Over time I've gotten smart enough to not just plug in new old stuff, too many clouds of smoke.
> 
> But from what you guys tell me, I'm getting optimistic.
> 
> As I was playing with the keyboard, I noticed that the 2 toothed gears (that are separate when no key has been pressed) are slightly touching, causing a grind noise.  Just the tips are touching.  I assume that's not good?