I don't pull V2, but it is not a bad idea. Internally the grid is not connected to anything so it should not matter (with no power).Structo wrote:Yes but if you measure the wiper of the trimmer to ground there shouldn't be anything affecting it right? Especially if you pulled V2 to do the measurement.
Also, I don't know why you would want to measure any resistance with the power on.
Sounds like a good formula to burn up a meter.
I guess my original post was a bit misleading. Normally I would not measure resistance with power on, but being that I am impatient and lazy
, i do sometimes measure components in the signal path with power on but in standby. After this discussion I am not going to do that anymore because as i found out, voltage can creep into places you would not expect it to be. Also it is dangerous. Best practice is to never do anything with the AC power cord plugged in that you can do with it unplugged. (Doing my part to keep newbies from turning out like me)