This circuit was published in an article in Radio Electronics magazine in October 1988. It uses components that are still common today, except for the sensor, which is a special type from that time.
This circuit is from Popular Electronics from the 90's. The circuit discharges the battery with a...
This Cross Fader as it is also known causes the brightness of one lamp to increase while the...
With this circuit found in a 1965 Electronic Design, it is possible to read a peak voltage of up to...