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 tone control was obtained from the CA3140 datasheet, originally created by RCA. The CA3140...
This low current regulator uses an operational 741 and a BC548 general-purpose transistor. The...
This game of speed or who is the fastest uses a digital display. The circuit was found in a 1991...