This circuit was found in the 1990 Motorola Dataar Linear. We can mount it with more modern equivalent transistors. Output transistors shall be provided with heat radiators.
This simple electroscope with bipolar transistors is not the most sensitive, but can detect static...
This is one of many Morse code audio oscillators that can be found in this section. The circuit...
Three of the four gates found in a 4001 can be used to perform as an AND gate. This improvisation...