Hi, along with my little static sensor project I am building with my grandson, we are also going to build a simple EMF sensor.
I have the schematic but there is one bit I am just not sure how it actually connects. I have copied that part of the schematic and attached here.
As I explained before I am not that great with some bits of electronics so you are looking for the pot off pin 8 of the LM3914.
Does it show that the pot wiper is actually needs connecting to pin 8 along with the fixed end of the pot (ie pins 1 and 2 of the pot connect to LM3914 pin 8)
I have tried asking the person who made the design by email last week but not heard anything, so asking the bright minds here if they think it is correct. I ask because my understand is that the having 3 pins. so pins 1 and 3 form the resistance range and pin 2 (wiper) is what chooses the variable resistance. So can you have pins 1 and 2 connected together?
Thanks all for reading and replying.