[sdiy] Re: Selecting Components

[harry bissell]

imho  (is that initial slang for " I'm a HO " ???   :^)

The resistors of equal ohmic value would have equal thermal
noise.  More likely other parasitic effects like self-inductance
and capacitance would define the differences... if any

H^) harry



Tonelismulas V wrote:
> 1/4w vs 1/8 vs SMD...
> Does the resistor mass have any relation to the resistor noise?
> I mean, is 1W resistor (1K 1% metal film) noisier than a 1/8W
> (1K 1% metal film) one?
>
> Maybe a stupid question... but always wonder about this.
>
> Victor T
>
> On 9/7/06, Ingo Debus <debus at cityweb.de> wrote:
>>
>> Am 06.09.2006 um 21:20 schrieb PLEASE-NO-CC-Roy J. Tellason:
>>
>> > On Wednesday 06 September 2006 03:03 pm, Ian Fritz wrote:
>> >> At 12:37 PM 9/6/2006, Roy J. Tellason wrote:
>> >>> No they're not,  they're too damn small!  The smaller the part
>> >>> the more
>> >>> difficulty I have with these large hands,  not to mention that it's
>> >>> getting harder for me to see the damn things!
>> >>
>> >> Well, no argument on that part!  Also the colors always seem
>> >> unclear, so
>> >> you need a good strong light source to read them.
>> >
>> > Yeah,  that too...
>> >
>> > I have a magnifying glass sitting on my desk,  a slightly stronger
>> > one sitting
>> > in the drawer,  and a stronger one yet in a bag in there,  plus one
>> > of those
>> > illuminated magnifying lamps handy.
>>
>> I don't quite understand... are you talking SMD or leaded parts?
>> I find that for leaded resistors the size of the body doesn't matter
>> that much, I grab them by the leads anyway.
>>
>> Yes, colors of metal film resistors are often difficult to read, but
>> I got a DMM with a nice big display :-)
>>
>> Ingo
>>
>
>