This circuit has an automatic dynamic gain control in a range of 6 dB to 40 dB. We found it in documentation from the 90s. The bipolar transistor is a general purpose type.
This circuit prevents the passage of frequencies in a range starting at 1 kHz and can be adjusted...
This circuit of an old documentation but with modern components still common today, brings...
Indicated for digital temperature measurement, this converter circuit was found in an Electronic...