This circuit was found in a Philips documentation from 1970. The components are of the time, difficult to find today, but the configuration can be adapted to use modern equivalent components.
This LCD driver circuit uses a common component today. The circuit is from 90's documentation....
This circuit converts signals from 0 to 19 kHz into voltages from 0 to 1 V. The circuit is from a...
This simple 555 component tester was found in the November 1992 issue of Radio Electronics...