From: Michel Catudal
Subject: Re: what is 100R mean in a schematics?
Date: 25 Dec 2002 08:17:15 -0600
Organization: Pas =?ISO-8859-1?Q?organis=E9?= par Ti-Mou
X-Accept-Language: fr-CA, Joual, en-US
Rodger Boots wrote:
> On Fri, 20 Dec 2002 00:36:11 +0800, "EE leaner"
>>what is 100R mean in a schematics?
> It's just 100 ohms. Also used are K (4K7 is 4700 ohms) and M (1M5 is
> 1,500,000 ohms).
> You also see this used on American military precision resistors as
> part of the part number. Like 10R0 for 10.0 ohms. That third digit
> is needed for 1% resistors. And it's less confusing than the old
> color code system for small value resistors (red red black=22, red red
> gold=2.2, red red silver=.22 --- it was always hard to keep track of
> the gold and silver since, for tolerance, gold is tighter but for the
> decimal point silver is tighter---strange).
> It also works better in printing, but was printed that way more in
> Europe than in the USA.
It does not! It looks ridiculous. To save place on a resistor it may have
some value but there is not logic in polluting drawings with this nonsense.
> Does look strange the first time you see it,
One wonders when looking at that about the sanity of the one who drew the
Tired of Microsoft's rebootive multitasking?
then it's time to upgrade to Linux.