This circuit is from Motorola's Linear Interface ICs of 1993. The circuit can be powered by symmetrical 6 to 12 V voltages and for a stereo version, two channels must be built.
The purpose of this circuit is to detect audio that amplitude modulates an RF carrier. The circuit is...
This crystal filter is normally used in receivers and the frequency depends on the crystal used...
We found this circuit in documentation from National Semiconductor. For the medium wave range the...