This circuit was found in American documentation from the 1960s. The operational amplifier is from that time, but the configuration applies to modern equivalents.
In the figure we have the way to adjust the output null of an operational. The configuration...
The circuit shown was found in the 1994 National Semiconductor's Linear Application Handbook. The...
This article is old, from 1994. But, for those who have an old PC and want to use a joystick from...