matta

Resistor Variance?
« on: May 25, 2005, 07:48:10 AM »
Hey Guys,

I?m building another Green and am using all 1% 1/4W Resistors this time,
most of the resistors have come within that 1% variance except my 10K?s
which measure in at between 9.7 and 9.6K, from a batch of 20 resistors. Is
it still safe to use these in the Green, even though it is less than a 1%
Variance from 10K? How specific does one need to get?

Thanks

Matt
Matt Allison
www.matt-allison.com

Quote
We are not going to start thinking of ways to get an octopus to commit a crime, cause that just has failure written all over it – Earl J Hickey


gyraf

Resistor Variance?
« Reply #1 on: May 25, 2005, 08:28:35 AM »
Are you sure your DMM is accurate to that tolerance in that range?  :razz:

(other than that, you probably won't need absolute accuracy - but relative accuracy. So if they don't differ too much from each other, it shouldn't be a problem anyway)
..note to self: don't let Harman run your company..

matta

Resistor Variance?
« Reply #2 on: May 25, 2005, 09:02:30 AM »
Hah hah!

I see what you mean ;-)

What I meant was that of the 20 resistors I tested some were 9.6 and others
were 9.7K, but none were 10K. I see how funny my previous post looks now and
no my DMM is not that accurate ;-)

I assume as long as say I used 10 9.7K?s in place of 10K I should be fine?

Cheers

Matt
Matt Allison
www.matt-allison.com

Quote
We are not going to start thinking of ways to get an octopus to commit a crime, cause that just has failure written all over it – Earl J Hickey

gyraf

Resistor Variance?
« Reply #3 on: May 25, 2005, 10:42:42 AM »
Yup..
..note to self: don't let Harman run your company..

CJ

Resistor Variance?
« Reply #4 on: May 25, 2005, 02:39:50 PM »
Make sure your hands are not touching the probes when measuring 10K and above.
If I can't fix it, I can fix it so nobody else can!
Frank's Tube Page: www.mif.pg.gda.pl/homepages/frank/vs.html
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matta

Resistor Variance?
« Reply #5 on: May 25, 2005, 02:44:00 PM »
Hey Guys,

Thanks. Jakob matched them as best I could and CJ, I learnt quickly that my fingers change things... darn human parts, LOL!

Cheers

Matt
Matt Allison
www.matt-allison.com

Quote
We are not going to start thinking of ways to get an octopus to commit a crime, cause that just has failure written all over it – Earl J Hickey


 

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