This circuit was obtained from an 80's Radio Electronics. The circuit decodes “scrambled” or sinusoidal encoded signals by providing an audio signal at the output.
We found this circuit in the January 1992 issue of Radio Electronics magazine. The circuit...
The division by eight using the 4018 is made as shown here. It isn't necessary to use additional...
May 2017 - Texas Instruments' new OPAx388 operational amplifiers can now be purchased from Mouser...