Based on NXP 74HC logic, this circuit can be adapted for various uses. The circuit can also be used with 12V power, and the circuit replaced with a common 4046 PLL.
In this receiver the is formed by 80 turns of wire 28 or close in a ferrite rod. The handset is...
We found this circuit in a documentation from the 90's. Information on the A/D converter was not...
We found this circuit in a Popular Electronics from the 90's. The circuit activates an oscillator...