Sky Raider (United) (Mechanical Arcade Games)

This game has eletro-mechanical sound effects, a combination of bells and other mechanical sounds, similar to pinball machines. As far as I can tell, it has no synthetic sound. The sounds can be heard in this video.

Musée Mécanique: I found this cool electro-mechanical game, where you look through a crosshair and aim at enemy planes and fire at them.