Help! 4017 decoder?

[colin55]

The last circuit you posted will work perfectly. Now just provide the diode gating inside the box.

Here's a link to help the original poster. It describes the 4017 and other chips and what you can connect together.


4000 series CMOS Logic ICs

 

[HD ELEKTRONİK]

With Transistor :

**broken link removed**

 

[blueroomelectronics]

Nicely done Diode Transistor Logic.

 

[colin55]

You need 10 arrangements - approx 50 diodes.

 

[HD ELEKTRONİK]

0-->6
1-->2
2-->5
3-->5
4-->4
5-->5
6-->6 (or 5)
7-->4 (or 3)
8-->7
9-->6 (or 5)
+___
50 (or 47)

 

[HD ELEKTRONİK]

With 15X 1N4148 ;

**broken link removed**