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 from an old American documentation having a limited adjustment range....
The movement of the LEDs in this circuit mimics the back-and-forth movement of a pendulum, making it...
This circuit is from a 1967 documentation. It makes use of varicap and diode tunnel in addition to...