This circuit is from Radio Electronics from March 1977. The integrated circuit is from that time and the circuit is intended for an infrared audio link. The modulation is in pulse frequency.
This circuit came out in a Popular Electronics from December 1995. It is a double T configuration that...
This circuit starts a water pump at a lower level of the reservoir and then turns it off when it...
This relaxation oscillator, simulated in the Multisim Blue, produces two different signals. The...