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From: kenny@m.cs.uiuc.edu
Newsgroups: sci.electronics
Subject: Re: Resistor types
Message-ID: <21000055@m.cs.uiuc.edu>
Date: 15 Jan 90 01:39:34 GMT
References: <231715@<1990Jan12>
Lines: 17
Nf-ID: #R:<1990Jan12:231715:m.cs.uiuc.edu:21000055:000:692
Nf-From: m.cs.uiuc.edu!kenny    Jan 14 16:14:00 1990


In article <1990Jan12.231715.28296@phri.nyu.edu> roy@phri.nyu.edu (Roy Smith) writes:
>
>	What are the significant differences between the various resistor
>technologies for "typical" resistors, say 1/4, 1/2, or 1W in 1-ohm through 10
>Megohm values?

whit@milton.acs.washington.edu (John Whitmore) gives a fine discussion
of the materials, but omits one point that I consider important. 

Film type resistors generally have the resistive material deposited
on an insulating rod, and then cut in a helical pattern using either
screw machinery or a laser.  These, and wirewounds, both are quite
inductive.  If low inductance is essential, composition types are
preferable.

Kevin Kenny  KE9TV