I’m currently repairing a device and I’m trying to understand what this circuit board does and how, and whether it is causing the malfunction. While doing that I stumbled upon this resistor whose color code does not agree with my multimeter. I’m measuring 152.1Ω, but the way I’m reading the colors it should be the very common value of 69.1MΩ. If I reverse the order, I get 1.51Ω/15.1GΩ/151GΩ, depending on whether the second color from the left is silver, grey or white. Black would give me 151Ω, but it definitely is not black.
The device this circuit board is from is pretty old. I don’t know how old, but there is exactly one IC on it, with a datasheet published in April 1974. The relay in the background has 1979 written on it; I’m not sure if that is supposed to be a year.
Any ideas? Am I reading the colors wrong? Do I trust the multimeter or the markings regarding the intended value of this resistor? Have you seen resistors whose color codes have changed over decades of use?
multimeters come in handy
As stated I measured; the question is how and why the measurement is so far off from the encoded resistance, and why those values are so strange no matter how I read them.
oh, sorry for not reading through all the way