In article ,
"RST Engineering" wrote:

No, the 18 ohm would end in black (one plus eight multiplied by ten to the
zero) but the 180 ohm would end in brown (one plus eight multiplied by ten
to the one).

Jim



wouldn't the last value stripe on a 180K be yellow? Unless we're talking
precision (1%, 4 stripe) resistors, in which case it would be orange all
right, but then the 180 ohm would end in black.


JIm, you're a fine engineer, and I believe it was your product that the
OP referenced, but I've worked with the color code for a living every
day for twenty years. Perhaps I didn't state my case clearly, and we
aren't disagreeing about colors but just not communicating clearly.

Standard color code, two significant digits plus multiplier:

180 K brown, gray, yellow
180 ohm brown, gray, brown


Precision resistors, three significant digits plus multiplier:

180 K brown, gray, black, orange
180 ohm brown, gray, black, black


The respondent who offered the OP a diplomatic excuse for the mixup
opined that it was easy to confuse brown and orange on certain
background colors. Neither the standard nor the four-stripe code offers
an opportunity for that confusion. The man who built the thing used the
wrong resistors and admitted it. All I'm saying is, his error wasn't
based on a case of indistinguishable colors.