ATA 79 - Oil

In bound..... oil pressure indicates high on takeoff roll. (Image..... engine not running, but still indicates high with no pressure.)
  
     
  
We changed the transmitter, which is a just a variable potentiometer.
  
     
     
  
I wanted to know the total resistance across the coil to see if I could substitute one in to drive the indication up. I was somewhat surprised to find just 20 Ohms across the whole thing.
  
     
  
I didn't have one that low. I did find a 25 Ohm unit which should work fine for troubleshooting the next pressure issue.