General > General Technical Chat

Am colour blind, need help identifying bands

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JohanH:
I have a bit of red-green color vision deficiency (that's not blindness!) and I can see that it is more red, although it looks a bit brownish. Gimp tells me #9a584a from a random point, which is a shade of red (60.4% red). So 22 µH.

David_AVD:
I reckon 22 (not 11) too. I hate it when they use a red that's bordering on brown, or orange that's bordering on red.

mc172:
It looks brown to me, especially when compared to the red in the bottom of the 2nd picture.

hans:

--- Quote from: nctnico on August 24, 2022, 08:36:36 pm ---I vote for red (22uH). But if you want to be absolutely sure, desolder one and use an LCR meter.

To the OP: you can import the photo into a paint program and look at the RGB values of the colors and see what matches best with these color values: https://people.duke.edu/~ng46/topics/color-code.htm

--- End quote ---

Also looks 2x red to me.

That 2nd tip exactly my thoughts as well. Digital devices aren't handicapped.
I've Myopia (pretty common) with strength -4 ish (can't read anything more than a foot away). When relaxing I am tired wearing glasses, so I put them down.. but occasionally I do need to check things in the distance.

Mobile phone to the rescue. I hold it right in front of my face with the camera app (with small/wide angle sensor views) and occasionally some digital zoom to get an idea about what's going on there in the far distance.. works great. I imagine computer color probing can be similarly useful.

David_AVD:

--- Quote from: mc172 on August 24, 2022, 09:30:23 pm ---It looks brown to me, especially when compared to the red in the bottom of the 2nd picture.

--- End quote ---
That's the problem in real life though, the colours are never as clear cut as any data sheet depiction or computer generated chart.

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