Found in a 90s Linear Technology document, this circuit uses components from that time. The transistor must have a good heat sink.
This circuit was found in Maxim's documentation from the 90's. The circuit provides 12 V x 120 mA....
This circuit was found in an Electronic Engineering of the 80s. The circuit indicates when a...
Found in English documentation from the 1980s, this 3 transistors siren directly drives a small...