Date: Wed, 24 Sep 2003 22:13:55 +0200
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From: "Hans-Albrecht Haffa" <haffaha@web.de>
To: rsgb_lf_group@blacksheep.org
Subject: Re: LF: Pot cores
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Dear Mike,
yes it seems to me as if "Pot cores " got its name by a kind of cooking set.  i. e by its shape.  There are EE cores, rod cores etc. But I dont recomend pot cores for new designs. Take a ETD-Core and align the gap with a saw from the tile plastering department of the do it yourself market. The stray filed of a ETD core with no center leg (maximum gap) is little and ETD cores are available in many sizes by many manufacturers. You will not get anymore a pot core sized 60mm in Diameter. 
55, Hans-Albrecht DK 8 ND

rsgb_lf_group@blacksheep.org schrieb am 23.09.03 12:58:03:
> 
> On 22 Sep 2003 at 16:30, Hugh M0WYE wrote:
> 
> > While pondering a filter design and playing with a pot core type inductor...
> > RM6 / RM10 etc.
> > I wondered: "Why is it called a pot core - it doesn't look much like a pot
> > ?"
> > Anyone know how the pot-core got it's name ?
> > Silly, I know, but one does like to know these things ...
> 
> I always understood this was short for "potted", and presumably refers 
> to the complete encapsulation of the inductance in ferrite that occurs in 
> most 'pot cores'. It may also be connected with the ceramic (ie pottery) 
> mixed with iron dust to make the ferrite.
> 
> Mike, G3XDV
> ==========
> 
> 


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