Stiff keys on the HP-85

[Ondra]

I have an HP-85 computer and some keys do not come back when pressed. But the keys work. When I press the A key for example, the key stays down and the letters A's quickly jump on the screen until I lever the key back up. Does anyone know how to fix this problem?

[ZdenekHQ]

have you tried oiling the keys? Try canola oil, for example.

[oldcomp]

no lubrication will help. If you pour oil in there, you will destroy the switch. The problem is in the cracked plastic line of the switch. The key gets stuck in it and won't come back.