Peter Duniho wrote:

I haven't gone around inspecting the electrically operated stall warning
tabs, but all of the ones I've seen (on my own airplane, and on the larger
Cessnas) have been the former: a switch held down simply by gravity (and,
while the airplane is in motion, by the relative wind), blown upward as the
stagnation line moves below it. No springs involved.

That's the way the Maule switch works.

George Patterson
Give a person a fish and you feed him for a day; teach a person to
use the Internet and he won't bother you for weeks.