This is one of the many 555 based car alarm circuits that we have on our website. We found it in a 90’s American documentation. The circuit has double timing.
The presented circuit makes use of two hybrid modules (see articles on the website) to drive a...
With this simple tester you can measure the gain of an NPN or PNP transistor. The instrument can...
This circuit amplifies signals only in the frequency range determined by the double T. The circuit is...