Found in a European magazine from the 1980s, this circuit can amplify signals from 10 kHz up to over 220 MHz with good gain. MOSFET supports equivalents.
This circuit was found in documentation from the 90's. The load can be a relay and the sensor an...
The presented circuit is used in Power supply to increase the voltage output. The voltage output...
Found in a 1967 Electronics World, this preamplifier uses an integrated circuit from that time,...