I have a question that probably is too simple for even a beginner question, but I would really appreciate some help...
I wanted to replace some resistors on a PCB. One of them is a 100k resistor, to be replaced with a 220k. I measured the 220k before starting everything and the measurement showed indeed 220k. After I put it on the board I measured it again...and it wasn't 220k anymore... It was something like 77k
Is this normal? Can the PCB change the value of the resistor based on...something...?
The funny thing, for me at least, is that another resistor I replaced maintained its value after putting it somewhere else on the board.
Could anyone please shed some light on this? Thanks