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 circuit was found in a Japanese publication from the 1960s. It uses germanium transistors and is powered...
This circuit generates signals from 50kHz to 10MHz, depending on the crystal used. The transistors can be...
This circuit was found in a 1980s Signetics documentation. The integrated circuit is from the era. The...