Found in a 1969’s EDN, this circuit provides 4.5 V with a 100mA current for digital logic. The circuit uses transistors from the era.
The figure shows how to associate flip-flops in a shift register to obtain a lower frequency...
Mouser has a huge list of sensors for the most diverse applications such as automation, IoT,...
This circuit was found in a 1987 publication. It consists of a touch bistable that controls a...