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From: "R. Lewis"
Subject: Re: want a list of R value E6 E12 E24 E48 E96
Date: Sat, 9 Nov 2002 14:17:46 -0000
Organization: Nextra UK
NNTP-Posting-Date: Sun, 10 Nov 2002 11:54:56 +0000 (UTC)
X-Newsreader: Microsoft Outlook Express 6.00.2600.0000
"John Jardine" wrote in message
> R. Lewis wrote in message
> > "cpemma" wrote in message
> > news:email@example.com...
> > > John Jardine wrote:
> > > >
> > > > From E24 on ...
> > > > Why can't they make some ** really useful** values like
> > > > 400,500,600,700,800,900 instead of slavishly keeping to that 'log
> > > > increment' formulae.
> > >
> > > You mean the E1 series? ;)
> > >
> > Funny how old wives tales about log series for resistors hangs on.
> > Where did it come from?
> > (Pleeeeeze do not explain that the resistor series follows a logarithmic
> > progression)
> I've no idea of the details but remembered it from a long discussion in
> Wireless World mag', many many years ago. IIRC a German contributor
> quoted the series generator formula and the relevant DIN national
> Also, (I am told) one of the BS standards uses an identical version for
> electric motor 'preferred sizing' purposes.
> Also found this which makes a little sense.
Is 'a' in the above sentence a typo?
a quote therefrom:
"The key to understanding resistor values is to realize they are almost
always used in ratios, so equi-distribution in the logarithm is important."
a quote from myself
"Material from the anus of an ox"
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