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"Lux vita" banished from laboratory
"Lux vita" banished from laboratory
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Old 24th October 2006, 02:40 PM   #1
jackinnj is offline jackinnj  United States
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"Lux vita" banished from laboratory
Default "Lux vita" banished from laboratory

Amusing story from "Tales from the Cubicle" -- how an engineer discovered that lights sometimes mix too well with your design:


How many others have seen a design modulated because some clear 1N4148's were modulated?
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Old 24th October 2006, 10:43 PM   #2
Pano is offline Pano  United States
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That's great!

I've cut the top off of metal can transistors to get the effect he didn't want.

I have a fluorescent light on my workbench. So far no light leak problems, but the HF ballast does induct noise into everything. A very good test for shielding.
Take the Speaker Voltage Test!
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Old 24th October 2006, 11:41 PM   #3
ReidK is offline ReidK  United States
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There was an EE course given at my alma mater which entailed designing and building circuits from a standard (and fairly small) parts kit. There was one project that could not be built unless the student realized that a photocell could be used as an oscillator (at least in the lab). I think the professor subsequently decided that while this did encourage (or at least test) ingenuity and "thinking outside the box", it really wasn't teaching good engineering, and the kit was upgraded, probably with a 555. Or maybe with two extra transistors...

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