Indicated for calibrating digital instruments and circuits, this circuit was found in the June 1982 issue of Radio Electronics magazine. The circuit is based on components that are still available.
This circuit was found in an Analog Devices publication from the 1990s. The circuit performs input...
This circuit is from a 1964 Electronic Design. The transistors are from that time. They can be...
Found in a 90s QST, this circuit uses an operational amplifier that is still common. It generates...