Based on a PLL 567, this circuit serves as a receiver for the CB9574E circuit. S tuning is done in R1 and it is used for frequency modulated signals.
This project, found in a 1981 documentation, consists of an interesting adaptation of the test...
August 2016 - It can be obtained from Mouser Electronics the power factor controller NCP1602 from...
We found this circuit in the November 1992 Radio Electronics magazine. It works with both...