This power supply was found in documentation from the 90s. Two power transistors are used to increase the current capacity. They must be equipped with a heat sink.
This circuit was obtained in a 1975 documentation. It is intended for old vehicles that still use...
This circuit uses a diode as a radiation sensor. The operational ones are old because the...
This circuit was found in the March 1999 issue of Electronics Now magazine. The meter is analog and...