[sdiy] Resistor War !!!

[Grant Richter]

> Metal Film =
> very high accuracy and stability over time
> very low noise

OK, resistor noise is a function of converting current noise (clumpyness)
into voltage noise by the relation V = I x R
> 
> Carbon Film (most common today)
> Not so good stability
> Not so good noise

So how can two different resistors of the same value produce different noise
figures? Are we talking about mechanical noise sources such as microphonics
or vibration sensitivity?

Otherwise that does not make any sense. Resistors are not active voltage
sources, so how can one type produce more noise than another? (since they
don't actually generate additional noise at all?)