Hello All About,
Working ten LED sequencer circuit with no luck. Started to troubleshoot and realized I know little about the 555 IC used in the ten LED sequencer circuit. So backed up and started studying the 555.
Working on circuit at
http://www.allaboutcircuits.com/vol_6/chpt_8/2.html
Started building my version
http://www.allenpitts.com/electronics/555/555_breadboard.JPG
But I realized that I really don't know what the blue colored object is in
http://www.allaboutcircuits.com/vol_6/chpt_8/2.html
I surmised it must be the potentiometer since that is the only thing
not showing in the illustration and the only thing I don't recognize.
There seems to be a ground rail side of the pot connected by the jumper between 1E and 1F. There is laso a jumper from the pot (3I to 8I) to another jumper (E8 to F8) that connects to two jumpers to the trigger and the threshold of the 555. I see the jumper bewteen J6 and the positive rail on the right. But since a pot is a resistor I am not sure how it can have three separate connectors.
Thanks.
Allen Pitts, Dallas Texas
Working ten LED sequencer circuit with no luck. Started to troubleshoot and realized I know little about the 555 IC used in the ten LED sequencer circuit. So backed up and started studying the 555.
Working on circuit at
http://www.allaboutcircuits.com/vol_6/chpt_8/2.html
Started building my version
http://www.allenpitts.com/electronics/555/555_breadboard.JPG
But I realized that I really don't know what the blue colored object is in
http://www.allaboutcircuits.com/vol_6/chpt_8/2.html
I surmised it must be the potentiometer since that is the only thing
not showing in the illustration and the only thing I don't recognize.
There seems to be a ground rail side of the pot connected by the jumper between 1E and 1F. There is laso a jumper from the pot (3I to 8I) to another jumper (E8 to F8) that connects to two jumpers to the trigger and the threshold of the 555. I see the jumper bewteen J6 and the positive rail on the right. But since a pot is a resistor I am not sure how it can have three separate connectors.
Thanks.
Allen Pitts, Dallas Texas