The trigger element of this circuit is a neon lamp. The SCR admits an equivalent. We found it in an American documentation from the 80s.
This PUT oscillator circuit has a frequency of 1 Hz. We find it in a General Electric...
This circuit for the car uses LDRs as sensors and does not need to be connected to the lamp. The...
This circuit of an Electronics Now from the 90's produces an intelligent direction signal that has...