Pulse relay connection with foot switch. Pulse relay is a mechanical bistable relay. Bistable Switch
XL-10AL XL-10AH Single Bond Button Bistable Micro One Key Switch Module 3.5-5.4V 4.5-26V 300nA 1.3uA Load 10A Low 555 Timer Bistable Led Switch operating 50 times. Monostable, Bistable and Astable modes with 555 timer IC. Wnt signaling and tbx16 form a bistable switch to commit bipotential How to make ON/OFF Switch Using 555 | DIY Bistable Multivibrator Revealed! ...