Found in American documentation from 1969, this circuit switches signals with a FET of the time. The circuit can be implemented with modern equivalent transistors.
May 2017 - Microchip LAN8710A and LAN8710Ai integrated circuits, low-power, high-performance...
An oscillator whose frequency can be adjusted between 500 Hz and 5 kHz with the use of a...
This sequential light effect was obtained in a 1992 documentation, but it can be easily assembled...