Found in a Popular Electronics from the 90's, this circuit is used to recognize the frequency of a modulated infrared signal. The LM567 circuit must not be supplied with voltages above 9 V.
This Audio System circuit was found in 1965 documentation. It is a 50 ohm line circuit with 22 dB...
This circuit is from an Electronics Now, American magazine from December 1992. The magazine no...
This circuit allows to increase the output power of a 741 as an amplifier. The circuit is from a...