This receiver circuit was found in a Hands On Electronics from the 90s. The circuit uses a PLL 561B that is not a common component today.
This control for 1/15 HP motors with 5,000 rpm for 115 V power grid was suggested by a Motorola...
The circuit below is found in the manuals of several manufacturers in the LM123 series of...
This configuration found in a Motorola documentation consists of an experimental circuit that uses...