This circuit uses an unusual sensor nowadays, but the configuration can be adapted to more modern types, as well as the operational amplifier. The circuit is from an 80's documentation.
This circuit was found in 80's Popular Electronics. The components used are common and the number of...
This 10-step voltage indicator was obtained from a 1980s publication. The circuit is based on an...
This circuit was found in an old Electronic Design used to apply digital signals to an analog...