This circuit is from a 1980s Signetics documentation. The circuit separates the modulation signal from a carrier. The used components are not common today.
With this circuit published in Radio Electronics magazine in September 1959, it is possible to use a...
This variable bandpass filter was found in an American 1980s documentation. The power supply must be...
A four-bit analog-to-digital converter [A/ D or ADC] can be built using one 4066. An 8-bit...