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Michael Dunn

Scope Notes: Honoring Jim Williams

Michael Dunn
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Joe Stanganelli
Joe Stanganelli
4/28/2012 11:48:02 PM
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Re: Analog scopes & Jim W.
*obligatory groan*

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MD
MD
4/18/2012 11:38:46 AM
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Re: Jim Williams
Thanks for the link. Even if you're not an analog designer, it would behoove you to check out some of Jim's work. After all, he's very much into scopes, test, and measurement, and, really, when you get down to it, there's no such thing as digital. It's just a convenient interpretation we sometimes impose on the analog world.

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Myscope
Myscope
4/18/2012 3:01:46 AM
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Jim Williams
I think the following link may help our readers to know more about Jim Williams and his contributions. This link is redirecting to edn. Com, a sister site of scope junction.


http://www.edn.com/article/518496-Analog_guru_Jim_Williams_dies_after_stroke.php

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MD
MD
4/17/2012 5:32:59 PM
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Re: Analog scopes & Jim W.
Sounds like you have a kaleide-scope...

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Scope_Master_G
Scope_Master_G
4/17/2012 3:39:27 PM
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Re: Analog scopes & Jim W.
I agree, Trace Clarity and Noise Floor are two I can directly relate to.

I'm constantly adjusting traces to get a better view, and you don't really know it is truly noise or an artifact of the scope.  I've even noticed different results depending on which scope channel is being used.  The differences seem to be a result of the different colors for each channel, some colors are better than others!

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Clairvoyant
Clairvoyant
4/17/2012 2:12:43 PM
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Sheriff
Re: Analog scopes & Jim W.
Even though I don't have a lot of experience with older scopes, I can definitely relate to points 1 & 2 (Trace Clarity and Sensitivity & Bandwidth). Most times when I am using a digital scope, I notice the trace clarity issue the most, and try to set up V/div and span to get the best looking plots. Different scope users may perfer certain aspects of older scopes or newer digital scopes based on the signals they are working with.

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MD
MD
4/17/2012 1:02:09 PM
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Analog scopes & Jim W.
Here's one of the "Reading Jim Williams" posts extolling analog scope superiority :-)

http://readingjimwilliams.blogspot.com/2012/02/vintage-scopes-are-better-part-1.html

How many of these points resonate with you?

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