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 Forum index » DIY Hardware and Software » MusicFromOuterSpace.com designs by Ray Wilson
Another resistor question.......
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DJQUIRK



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PostPosted: Wed Sep 20, 2006 2:16 pm    Post subject: Another resistor question....... Reply with quote  Mark this post and the followings unread

I recieved a load of sound lab resistors loose in a single bag. My question is how do I identify the 1% from the 5%?
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goodrevdoc



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PostPosted: Wed Sep 20, 2006 3:44 pm    Post subject: Reply with quote  Mark this post and the followings unread

This should help:
Resistor Chart
It even came from Ray's page! Very Happy
Happy Building'
-justin[/url]
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DJQUIRK



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PostPosted: Mon Sep 25, 2006 2:03 pm    Post subject: Reply with quote  Mark this post and the followings unread

The chart shows the 1%er's with a blue case. Is that how I can ID them? I just need to know if they're 1%, I can put them on the meter to see they're value.
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Blue Hell
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PostPosted: Mon Sep 25, 2006 2:29 pm    Post subject: Reply with quote  Mark this post and the followings unread

The case color says nothing about the accuracy of the component, that should be determined from the rings on it.

But if you're going to measure 'm anyway the info about 'm being 1% is not very relevant anymore.

When a resistor is 1% you can expect the real value of that resistor to be in a range 99% .. 101% of the value that is indicated by the rings on its body.

So when you measure a resistor and determine it to be in such a range it doesn't matter anymore if it was a 1%, a 5% or even a 100% resistor, you just checked it to be in range and so checked it to be ok for the purpose.

The % label is just a promise, so you don't have to measure it. A 5% resistor holds less of a promise than a 1% one, but in the end an Ohm is an Ohm.

Edit: in then chart linked above it is stated that a brown ring in the end indicates a 1% resistor and a golden one a 5% resistor. 1% resistors also have one extra colored ring as the are specified more precisely.

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