I created this schematic from a request about a printer heads tester.
The circuit can be helpful to drive 24 outputs, using three 4017, a 555 multivibrator, and three relays.
RS1 turns the clock signal to IC2; RS2 turns the clock signal to IC3.
Once RS3 is activated, all pin 15 take the high level, so the circuit backs to the start condition.
On this project the relays from R0 to R24 are required because they must drive 24Volts heads.
http://docs.google.com/fileview?id=...TQtYmVlNy00NWQwLWExZTQtZGQ4OWQyNTA3ZGRh&hl=it


More description:
http://sites.google.com/site/plcandcircuitdiagram/extended-counter-using-cd4017

 

We have had problems with the files associated with projects becoming lost over time when the off-site hosting has a problem or simply stops handling the files.

Could you transfer the schematics (as PNG's) and the descriptive material to the AAC server? That way they will always be available to interested parties.

 

Could you transfer the schematics (as PNG's) and the descriptive material to the AAC server?

I wish, but I don't know the way. So I uploaded it by mail message
(the same address you have used to confirm my registration).

 

Bill's Index

How to Display Attachments Full Size

 

Thank you, I didn' t see the additional options window.

 

Please read the rules of the Completed Projects forum.

When posting a project please include the following information:

1. A clear title that describes the project appended by the word 'Project:', for example "Project: 555 Audio Oscillator".
2. A list of parts, equipment, software used.
3. Details of any theory, references or information that may be applicable.
4. Any schematics, source code, etc.
5. A short description of what to do.
6. In the interests of manageability and security, project files/code/schematics must be locally stored. Links may be used to provide supplementary information, however they must not provide the substance of the project.

This project has sat in limbo basically because it didn't meet the above requirements. If you want to resubmit this entry please rework the entry to meet the requirements, then drop one of the moderators a PM pointing to it. If it is acceptable a moderator can move it back to the Completed Projects forum and clean up notices and suggestions (making them invisible).