This synthesizer circuit was found in a Radio Electronics magazine from May 1983. The circuit uses common components and does not require a balanced power supply.
The given number circuit is used to activate the relay by interrupting the light beam that hits...
In the figure we have a simple and efficient way to obtain rectangular signals from an astounding 555...
This circuit, for 78xx series integrated devices, is suggested by Motorola in its 1990 Linear...