Suggested by Siliconix in documentation from the 90s, this circuit can present gains of digitally selected by the input going from 1 to 1000. The circuit can be adapted to work as a shield.
The circuit presented requires a simple 12 V supply and was suggested by Motorola in its 1990...
Found in National Semiconductor documentation from the 1980s, this circuit uses an operational...
This simple demonstration circuit was found in a Popular Electronics of the 1980s. It can be...