[sdiy] Resistor Noise

[James Patchell]

A 500 ohm resistor and two 1000 ohm resistors in parallel would generate 
the same amount of noise....in theory.

Now, the type of resistor you are talking about could make a 
difference.  In general, Carbon Comp resistors generate a lot of noise 
above the theoretical amount, and Wire Wound and Bulk Metal resistors are 
very close to what they should be.  Metal films are just a tiny bit more 
noisey...and carbon film are a bit noisier still.


At 10:44 AM 4/17/2005 -0500, TIm Daugard wrote:
>As long as we're getting back to a basic discussion mode, which is
>noiser:
>
>- A 500 ohm resistor (which I would have to order)
>
>- Two 1000 ohm resistors in parallel
>
>Other than the resistance values, assume the resistors identical.
>
>If no one has an answer, I will look up the formulas and do the math.
>
>Tim Daugard
>AG4GZ 30.4078N 86.6227W Alt: 3.7 M
>http://home.sprintmail.com/~daugard/synth.htm

         -Jim
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