Upon pressing the switch, the circuit generates a pulse whose duration depends on C. The transistors can be BC548 and the power can be between 1 and 6 V. The circuit is from a 1975 publication.
In the presence of the supply voltage of a 3 to 12 V circuit, this circuit causes the LED to...
Found in a 1970 documentation this circuit makes use of components still common in the market. The...
This circuit is based on the well-known PLL 567 and can operate at 100 kHz. The transformer can be...