Hi everybody, greetings from Portugal.

I was wondering if somebody can help and is able to translate this “Martian R” ‍… you will get why ‍.

R18 omh I think it is… (brown-grey-black-gold-black?)

but what tolerance? (Black doesn't exist, as tolerance, and if you start to count from the other side… it doesn’t make sense).

thank you in advance (obrigado)

 

The final band can be a temperature coefficient, in the case of black 250 ppm/K.

 

The other option is a non-inductive wirewound resistor.
There is no "no tolerance" code. It is either marked with something or not.

 

Here: https://www.digikey.com/en/products/detail/yageo/NKN3WSJR-73-18R/2167724

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That is not this " right? "

I'm sorry I don't understand what you mean.

 

A yes sir would have sufficed

What are you on about? I'm done.