This circuit for very low frequencies was found in an American documentation from the 90's. Transistors are for general use and the frequency depends on C1 and C2.
This 1.6 to 20 V power supply, with a maximum current of 3.5 A and protection against short...
The circuit shown in the figure can be used on a data transfer bus using an appropriate family...
This simple circuit operates with only 1.5 volts of a battery and detects low resistance making a...