MrDEB
Well-Known Member
Trying to figure out why this gizmo dosn't work or at least it seems not to work.
I bread boarded most all except the resistor ladder.
looking at schematic, getting frustrated as I found several minor problems but using DMM the resistor ladder / parallel pot don't seem to give correct results.
resistance from pin 7 to pins 2/6 is supposed to change upon pressing any of the switches SW4-SW7 (the four in the resistor ladder)![cub toy.PNG cub toy.PNG](https://www.electro-tech-online.com/data/attachments/32/32580-00ef467e701e3fcd04e69b8b4248422a.jpg)
gots to be something really basic but I am making it harder than it is thus preventing me from a solution.
I bread boarded most all except the resistor ladder.
looking at schematic, getting frustrated as I found several minor problems but using DMM the resistor ladder / parallel pot don't seem to give correct results.
resistance from pin 7 to pins 2/6 is supposed to change upon pressing any of the switches SW4-SW7 (the four in the resistor ladder)
![cub toy.PNG cub toy.PNG](https://www.electro-tech-online.com/data/attachments/32/32580-00ef467e701e3fcd04e69b8b4248422a.jpg)
gots to be something really basic but I am making it harder than it is thus preventing me from a solution.