This circuit was found in an 80's Poptronics. The circuit is a fast trigger whose signal can be taken from the Q2 collector. The supply can be done with voltages from 9 to 12 V.
This is the project was found in a 1982 publication. As shown in the figure, these are two...
This simple circuit is designed to charger AA or AAA Nicad batteries. Current can be changed...
This realistic circuit has longer timings for green and red lights, with shorter timings for...