bcarso
Well-known member
[quote author="AMZ-FX"]
He is talking about carbon comp but the principle applies to film resistors to some extent. I would expand that to say that 1/4w are more noisy than 1/2w and 1/8w more noisy still.... size does make a difference.
regards, Jack[/quote]
That is definitely borne out in the experiments.
I did finally find a Matsushit* document on SM resistors wherein they show some excess noise data. The English is a bit garbled. See their pg 11 (pdf page 12) and following:
http://industrial.panasonic.com/www-data/pdf/AOA0000/AOA0000PE8.pdf
There was also a paper about noise within the resistive material, as opposed to simply the contacts, and methods of reducing it, that came up on a search, but I'll be damned if I can get back to it. It was also the search that yielded up the outrageous flamer so I suspect my subconscious is intervening :grin:
He is talking about carbon comp but the principle applies to film resistors to some extent. I would expand that to say that 1/4w are more noisy than 1/2w and 1/8w more noisy still.... size does make a difference.
regards, Jack[/quote]
That is definitely borne out in the experiments.
I did finally find a Matsushit* document on SM resistors wherein they show some excess noise data. The English is a bit garbled. See their pg 11 (pdf page 12) and following:
http://industrial.panasonic.com/www-data/pdf/AOA0000/AOA0000PE8.pdf
There was also a paper about noise within the resistive material, as opposed to simply the contacts, and methods of reducing it, that came up on a search, but I'll be damned if I can get back to it. It was also the search that yielded up the outrageous flamer so I suspect my subconscious is intervening :grin: