This low noise circuit was obtained from a 1980s US RF publication. Transistors used are uncommon today and the gain is 19 dB..
SAM D5x and E5x MCUs Provide Powerful Performance and Enhanced Security Features CHANDLER, Ariz.,...
This circuit compresses the dynamic range (amplitudes) of an audio signal. The circuit is passive and...
We found this circuit in an old Linear Technology manual. It makes use of the LTC1329 and can be...