This low noise circuit was obtained from a 1980s US RF publication. Transistors used are uncommon today and the gain is 19 dB..
We found in this American documentation this circuit for activating common cathode displays. In it we...
With 3 transistors, we found this receiver in a documentation from 1966. The circuit has an output...
This RF amplifier step has a dynamic range of 140 dB and can amplify signals from 0.5 to 40 MHz....