20 LED Effects Circuit Using 4017 (CB25438E)

This series LED circuit was found in the February 1992 issue of Radio Electronics magazine. The effect's speed is dependent on C1 and adjusted by R3.

| Clique na imagem para ampliar |

1 to 4 MHz CMOS Oscillator (CB9658E)
This traditional crystal oscillator configuration can use any CMOS gate configured as an inverter. R1...
Zero Crossing Switch (CB6009E)
This is a circuit of an 80's American documentation and can be implemented with modern components....
Emitter Triggered Flip Flop (CB994E)
This flip-flop using two bipolar transistor was found in a publication of the year 1968. The...