Found in the book 303 Circuits, this circuit compresses signals from 25 mV to 20 Vpp to intensities of 1.5 Vpp to 3.5 Vpp. The frequency range is from 7 Hz to 67 kHz.
Using the 723 integrated circuit, this circuit was found in an article on power supplies in the...
This high quality audio preamplifier uses three bipolar transistor and is powered from 24 V...
This transmitter emits signals in the FM range, reaching a few meters away. The modulation...