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 found in an American documentation from the 90's. What it does is provide at the...
Found in old documentation, this circuit is tuned to pass signals below 245 Hz with a level of...
This series LED circuit was found in the February 1992 issue of Radio Electronics magazine. The...