Hello,

Here I found a PDF with a lot of facts for all kind of electric and electronics subjects.

Bertus

 

Looks like a lot of good info

 

Thanks for sharing that PDF – collections of quick-reference facts are really useful when you’re working through designs or labs and don’t want to dig through full textbooks. For anyone who often finds themselves double-checking resistor color codes specifically, there’s also a small convenience tool that can save time: the Resistor Scanner iOS app lets you snap a photo of a resistor and instantly get its value instead of decoding the bands by eye. It’s not a replacement for understanding the codes, but it’s handy on the bench or in the lab when you just want to move on with the circuit: <SPAM LINK REMOVED>

Quick and easy high-tech solutions are always attractive. However, there are still benefits in doing things the long way, in other words, take the time and effort to learn the resistor colour code and use your ohmmeter for verification.

Another reason to shy away from AI.

 

Thanks for sharing that PDF – collections of quick-reference facts are really useful when you’re working through designs or labs and don’t want to dig through full textbooks. For anyone who often finds themselves double-checking resistor color codes specifically, there’s also a small convenience tool that can save time: the Resistor Scanner iOS app lets you snap a photo of a resistor and instantly get its value instead of decoding the bands by eye. It’s not a replacement for understanding the codes, but it’s handy on the bench or in the lab when you just want to move on with the circuit: <SPAM LINK REMOVED>

And there are enough non-standard color schemes used by various manufacturers, usually to encode a bit of additional information for a particular large contract, that those apps can happily give you a very confident, but wrong, answer. This is not a huge problem for someone that does understand the basic schemes and that doesn't just accept whatever the app says at face value. The problem, as with so many things, is that people will have a natural tendency to use the as a replacement for the need to understand the basics or, even if they do (or did) understand them, they will fall into the trap of just accepting what it says without asking if it makes sense. Why? Precisely because they "just want to move on with the circuit/"