This circuit controls 6 LEDs in two sets with the phase change cycles controlled by a 555 oscillator. The circuit can be powered by voltages between 6 and 12 V.
Using L144 operational, this circuit applies to other equivalent operational. The circuit is from...
This circuit has a gain of 34 dB and a good power to be used as an audio booster in cars. The...
The circuit shown in the figure can be implemented with more modern equivalent operating systems. We...