Today this frequency corresponds to the end of the FM band. However, in December 1958, when the circuit was published in Radio Electronics magazine it was the frequency used by American satellites.
This circuit was found in a 1998 documentation and its purpose is to automate controls by timing its...
The LM567 is a PLL tone decoder that can also be used as a double oscillator as shown in the...
This is a one-bit memory that can be used to store a simple bit of information, such as a remote...