Suggested by an American documentation from the 90s, this circuit generates signals with frequencies determined by the capacitors and calculated by the formula next to the diagram.
The power supply shown in the figure provides output voltages in the range of 1.2 to 25 V with...
The components used in this regulator project from an old documentation are not very common today....
The circuit shown in the figure makes use of an LM3909, a low consumption and low voltage IC. The...