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Date: | Tue, 20 Oct 2015 22:55:03 -0400 |
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Are you trying to get people to identify components for inspection and
assembly (physical differences) or describe how the fundamental physical
characteristics contribute to their electronic functions (electrical
differences)? A coil is not too hard to find, and you can describe how it
generates an electromagnetic field, but there are some losses because it is
not made of superconducting wire. A primitive capacitor could be a stack of
metal plates, with every other one connected together. This allows for the
storage of electric charge, but there are losses (and even inductance) in
the hardware.
You can describe some of these fundamental components by how many leads they
must have.
Just a few random thoughts from someone who got his electrical engineering
degree 46 years ago and his ham license nearly 60 ago, back when the Braille
Technical Press was being published and a lot more people knew how to read
braille.
73,
Lloyd Rasmussen, W3IUU, Kensington, MD
http://lras.home.sprynet.com
-----Original Message-----
From: [log in to unmask]
Sent: Monday, October 19, 2015 8:59 AM
To: [log in to unmask]
Subject: Descriptions of electronic components
Hello, all -
Been a while since I posted. I'm looking for a web resource that describes
common electronic components in a way that would be useful to blind
students. When teaching in person I can do a show and tell, like Gordon
West used to do at Handiham California Radio Camp, but these days most
people are going to head down the self-study route and even if they are able
to get to a local class it is likely the presentation will be a PowerPoint
and the presenter may not know how to describe. It would be great to locate
some on line resources that explained things like resistors, capacitors, and
inductors in a more blind-friendly way. Any ideas?
Thanks!
73 - Pat
Patrick Tice
[log in to unmask]
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