This signal conditioner humidity sensor was found in a 1980s Linear Technology documentation. The circuit uses components from the era that can be designed with modern equivalents.
Found in an 80's Hands On Electronics, this circuit turns on a light when it gets dark and goes...
One of the application circuits we gave with the 4013 in this circuit bank was a bistable switch...
This circuit was suggested by Signetics in 1980s documentation. The circuit makes use of the...