We found this circuit in a 1964 Electronic Design. Transistors can be modern general-purpose equivalents. The circuit converts a 1 MHz sinusoidal signal into a rectangular signal.
July 2017 - The new Schottky rectifiers from the FMX series for currentes from 1 to 3 A from...
This TTL dice was found in an old American 1980s documentation, but can still be easily assembled....
This circuit uses an operational amplifier to simulate an inductor. The circuit is from old...