This circuit provides a delay for the activation of an alarm, giving the owner time to leave the premises. The circuit is from the 1995 Encyclopedia of Electronic Circuits Volume 5.
The slope of an object causes the sensor, a mercury switch to be triggered. The circuit activates...
This circuit with 5 times gain was found in European documentation from the 1980s. The input and...
Found in a 90s Linear Technology documentation, this circuit uses an operating system of the time....