This circuit simulates an American siren and can be found elsewhere on this website and section. The circuit is from a 90s documentation. Preferably, the signal should be applied to an amplifier.
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...