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I have two resistors which need to be replaced. I tried to determine the value, but it can't make sense of these black bands: Resistors in question For reference the bands are:

  • brown - silver - green - brown - black
  • brown - silver - red - brown - black

Since a silver line can only be part of the multiplier, that means the black line on the right has to be the tolerance. Black can not be used for a tolerance from what I've read.

Is this black line a tolerance value or something else?

tehwalris
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1 Answers1

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I don't think I've ever seen a resistor value with a leading zero (usually those super-low values are marked with the value in numerals), but that's what those appear to be. 0.012\$\Omega\$ 1% and 0.015\$\Omega\$ 1% are what I see (reading from right to left, as Olin suggests, but I think the silver is a multiplier and the brown is the tolerance).

Here's a 0.015\$\Omega\$ 1% resistor (courtesy Digikey):

enter image description here

Spehro Pefhany
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    I was initially using an app to determine the values and it wouldn't accept the leading black/zero. That's what got me confused. – tehwalris May 19 '15 at 17:43