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.
When the input voltage exceeds the value set in R4, the LED lights up, indicating this. The...
In this circuit of the 80's components of the time are used. The circuit controls a direct current...
Found in a 90s Elektor, this circuit is based on a Maxim integrated circuit of the time. The...