This circuit was obtained from a 1970s RCA. The circuit uses LDRs as sensors. The resistors depend on the A / D converter used. The circuit can be used as a shield.
This circuit was found in a 1980s documentation. Modern operational amplifiers can be used. The...
This circuit allows you to read temperatures with a common digital voltmeter. We found it in the...
We found this circuit in 2005 Linear Technology documentation. MPOSFET is load-matched. The...