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.
Found in a 1966’s General Electric documentation, this circuit uses a triple diode from the time....
We found this circuit in the Linear Technology Applications of 1997. The circuit uses components of the...
This circuit was found in an old Hewlett Packard publication. Its purpose is to activate neon...