In this National Semiconductor circuit, the output voltage is numerically equal to the square root of the input voltage. The circuit is from the 90s and the components are from the period.
Found in a Radio Electronics magazine from March 1950, this circuit uses a high-power neon lamp...
This amplifier was found in a 1970s documentation. Darlington transistors can be replaced for modern...
This circuit can generate signals up to 100 kHz. Found in documentation from the 1980s, it makes...