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.
An inproved version of the circuit CIR129E is shown here. The resistorR1 must be at least 5 times...
Figure bellow shows how n 4027 can be cascaded to form a divide-by-2. The maximum input frequency...
We found this circuit in an old American documentation for hams. The circuit serves as a telegraph...