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.
We found this circuit in an old documentation, but the components used offer no difficulty in obtaining...
This project was found in a 1982 publication. It is a small transmitter that can send signals from...
The circuit in the figure can be used to trigger a triac or even a comparator in a project that...