Found in American documentation from the 1990s, this simple circuit excites a LASER diode. The integrated circuit is from Sharp, uncommon nowadays.
This circuit controls a relay in a bistable way by touching the sensors type NF (CH3) and NO...
This circuit produces modulated tones in a loudspeaker. The effects can be adjusted by the...
This is a simulation of a Relaxation Oscillator using a programmable unijunction transistor (PUT). The...