Hello all,
Is it possible to have an electronic circuit that function without have~ing a connection to the negative batery row?
Please see the following page, where there are several circuits (with leds) at which I can't identify that connection:
ourworld.compuserve.com/homepages/Bill_Bowden
If there is a negative row connection, where is it? How can I read these circuits? (for the positive and negative connection)
Hello all,
Is it possible to have an electronic circuit that function without have~ing a connection to the negative batery row?
Please see the following page, where there are several circuits (with leds) at which I can't identify that connection:
ourworld.compuserve.com/homepages/Bill_Bowden
If there is a negative row connection, where is it? How can I read these circuits? (for the positive and negative connection)
Thanks and sorry for this late reply:
I mean this circuit "25 light sequencer using xmas lamps"
Aditionally, I don't uderstand if the transistors (next to 555, right next to 4017) are connected even if at the draw the liaison seams to be interrupted...
Aditionally, I don't uderstand if the transistors (next to 555, right next to 4017) are connected even if at the draw the liaison seams to be interrupted...
The five transistors arranged verticaly and to the right of the first 4017 should all have their respective collector terminal connected to +5V (like the top one)
In the matrix of lamps there are gaps where lines cross, these lines should really be continuous.
Where two lines connect togther there is a small dot at the intersection.
Many thanks to all of you.
One last question:
the arrow, at the left side, it is directed to the resistor of 100k.
Is there any special reason for that?
In fact the lines are already connected with a dot...so what's the point?
Many thanks to all of you.
One last question:
the arrow, at the left side, it is directed to the resistor of 100k.
Is there any special reason for that?
In fact the lines are already connected with a dot...so what's the point?