Most inexpensive pushbutton switches, particularly pc-board-mounting and membrane types, have momentary action. Latching types are often larger and relatively expensive, and they frequently are ...

This circuit allows an SPST momentary pushbutton to act as a push-on push-off switch, using a DPDT latching (bi-stable) relay. It was originally intended to allow a single pushbutton switch on the ...

Every so often, a new car will come out with fancy, seemingly new technology that, in reality, was already attempted in the '30s, '40s, or '50s. Take the push-button door handles from the Lincoln ...