B21126E)
This circuit was taken from an old Popular Electronics. The circuit can have its frequency changed from an external signal. The center frequency is given by C1.
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...