Found in a 1970 documentation, this circuit makes use of 741 operational amplifiers that are common today. Note that the power supply must be symmetrical.
November 2016 - Azoteq IQS572-B000 ProxSense, a Toucjscreen and Trackpad controller designed for...
This oscillator takes advantage of the inductance of a high impedance magnetic earphone to...
This circuit, used in radio communication, converts CW signals and tones that allow you to follow...