We found this circuit in the November 1992 issue of Radio Electronics magazine. The circuit has two integrated circuits, one of which is a preamplifier stage. The power supply must be dual.
The astable multivibrator shown by the figure can produce signals in the 10 to 10 000 Hz band...
August 2016 - Mouser Electronics is supplying the microcontrollers IF C1000 Intel Quark that...
We found this circuit in a Popular Electronics of the 90s. Its purpose is to detect when it locks...