This 80's Exar circuit has a carrier detector for frequencies up to 500 kHz. The circuit uses a company 567 which is still a common component.
This circuit controls the passage of the signal from one speaker to another. The potentiometers must be of...
The circuit in the figure shows us another very interesting application of TLC7555, the 555 CMOS. It...
This circuit was originally recommended for an electric oven warning system. However, we can use...