This circuit is from a Popular Electronics from the 90s, consisting of a repeater relay for remote control of TV, which today can be done by Wi-Fi or other simpler resources.
Found in old American documentation, this filter has a 8 dB per octave attenuation. The formulas for...
This circuit is intended for detecting 3 levels power grid voltage, and it can be adapted to...
This circuit allows the use of two triggers (inverters or NAND gates connected in this way) to...