This circuit uses components that are still common despite being from 1995 documentation. The circuit can be powered by 6 to 12 V voltages and the speed of the LEDs' sliding effect is set to P1.
This circuit was obtained from a 1990s documentation. The transistor admits equivalent and other...
For inductive loads we have the configuration shown in the figure. Note that the optical coupler...
This circuit acts as a VU-meter when connected at the output of any audio amplifier, triggering a...