This conventional 4 channel circuit with the 4017 and 555 was found in the November 1991 Radio Electronics magazine. The potentiometer can be 47k and it controls the speed of the effect.
This circuit uses a voltage comparator and can produce signals up to 20 MHz. The resistors R are...
This configuration was found in a 1978 technical documentation. What the circuit does is convert an...
This circuit was obtained in a 90s Electronic Design. The circuit uses components from that time....