This sensitive touch key appears on this website from other sources. This version was taken from a 90s American documentation. The source must not be of transformerless type.
The circuit we show is part of an article that taught its complete assembly. The article is from...
Found in American documentation from the 90s, this circuit has a timing system for activating the...
This circuit was obtained in a 90s Popular Electronics. It generates a 10 Hz sinusoidal signal...