This circuit was obtained from an American documentation from the 1980s. The T1 triggering transformer must provide 250 V pulses for the lamp to trigger.
We found this circuit very simple in an old documentation. The relay is high voltage sensitive, but...
This circuit was found in an Elektor from the 90s. The circuit uses common components even today,...
The circuit, shown in figure 2, is a monostable multivibrator with two NAND ports out of the 4...