| General > General Technical Chat |
| Am colour blind, need help identifying bands |
| << < (6/13) > >> |
| Ed.Kloonk:
--- Quote from: Kleinstein on August 25, 2022, 06:45:06 am ---The color look boarderline, more brown than red. So a color regocnition app on a phone would not really help. I don't hink there are strict standards on the colors, more like ROHS limitations that prevent some pigments (e.g. Hg containing red). red paint is often relatively transparent, so that the green background could effect the color. --- End quote --- I reckoned that's why the color codes around red/brown and blue/violet are adjacent to allow for a bit of hit and miss. Doesn't help, I know but imagine how interesting it would be if the colors values chosen were random! |
| Ed.Kloonk:
--- Quote from: EPAIII on August 25, 2022, 12:56:25 am ---This conversation makes me wonder if there may be a need for some kind of color recognition device. Not just for resistors/inductors or other electronic devices, but more general. Perhaps something that could be built into a pair of glasses. But then, perhaps that already exists. I don't have time to do that search. --- End quote --- Our illustrious reg authorities back in the dark ages decided to select red/black/green for active/neutral/earth for what is called building wire used in houses. Of course people with red/green deficiencies (their words, not mine) (most common, I believe) showed up. So they added a yellow stripe to the green one. Or sometimes, you'd swear it is green stripe on yellow. |
| tautech:
Tim88 Do yourself a big favour and get a set of smart tweezers, those that have LCR and ESR measurement capability. You’ll then be covered for TH and SMD. There are cheaper and dearer but these are excellent value that a number of us have given input into their design: https://www.eevblog.com/forum/testgear/design-a-new-precision-lcr-tweezers/ |
| mikeselectricstuff:
Definitely 22 - inductors like this are not high precision parts, so unlikely to exist in E24 values |
| Miyuki:
Those color stripes are sometimes so annoying, especially when they use some crap paints that tend to shift hues over time or temperature I know the tiny numbers have other issues and always ended in a bad place when inserted into the board. But at least it was clear and not a guessing name. But once you have a picture taken you can use some graphics app to identify colors, even the dumbest MSPaint will allow you to show R,G,B, or a Hue value to say what color it is |
| Navigation |
| Message Index |
| Next page |
| Previous page |