This RF amplifier step has a dynamic range of 140 dB and can amplify signals from 0.5 to 40 MHz. FET is old, but modern equivalents can be used.
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...