This circuit is from LinearTechnology Applications of 1997. The circuit uses components of the time used to raise the voltage of a battery from 3 to 6 V.
This circuit was found in the February 1970 issue of Radio Electronics magazine. The integrated circuit...
November 2016 - The Arduino Zero board, a 32-bit extension of the Arduino Uno for innovative IoT...
This low frequency oscillator with an operational amplifier of type 741 has adjustment of the mark...