Judge Spotlight: Dave Jones

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This week’s Judge Spotlight features [Dave Jones] who posted a video reponse to our slate of questions. If you’ve spent much time around here chances are you know of [Dave] quite well. He is the man behind the EEVblog and also hosts The Amp Hour podcast along with [Chris Gammell].

It’s great to pick [Dave's] brain a bit. He’s seen a lot during his career, with insights on professional engineering from the point of view of job seeker, employer, job interviewer, and more. His time with the EEVblog and Amp Hour have furthered his experience with looks inside of all manner of equipment, adventures in crowd funding, and interactions with a multitude of hardware start-ups. Check out his video, as well as a list of the questions with timestamps, after the jump.

We’re sure you know by now, he’s judging The Hackaday Prize which will award a trip to space and hundreds of other prizes for showing off your connected device built using Open Design.

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US Government Screws Up Terrorist Watchlist, Few Surprised

Dave

It looks like [Dave Jones] got himself on a US government watch list. We don’t mean [Dave L. Jones], awesomesauce electronic wizard and host of eevblog, though. Some three-letter agency is just looking at someone named [David Jones]. Is this going to screw over our Aussie friend? You betcha.

[Dave] bought a few things through Element 14 that he would later pick up at their Sydney warehouse. When he got there, he discovered the parts were ‘on hold’. Out of curiosity, he asked what the holdup was and discovered his name was flagged on a US government watch list.

If you’re keeping score, this is an Australian citizen buying stuff from an Australian subsidiary of a UK company, and being told ‘no’ by the US government.

The folks behind the counter at the Element 14 warehouse were extremely helpful, clearing the hold and getting [Dave]‘s parts in just a few minutes. This has, apparently, been going on for a while; [Dave] recalled a few times when orders showed up a few days late with the Farnell/Element 14 people apologizing with the word ‘hold’ in there somewhere.

Of course this means it’s possible for someone working at the Element 14 warehouse to clear one of these US government holds, and even if they don’t the order will still go through in a day or two. Government efficiency at its best.

At the time of this writing, [David Bowie], the singer for The Monkees, the creator of Grand Theft Auto, and the British author famous for perpetual motion machines were unavailable for comment. -ed.

$250,000 hard drive teardown

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Have you ever seen hard drive platters this big before? Of course you haven’t, the cost of this unit is way beyond your pay grade. But now that it’s decades old we get a chance to post around inside this beast. [Dave Jones] — who we haven’t seen around these parts in far too long — takes a look inside this $250,000 storage device.

In this episode of the EEVblog [Dave] is tearing down a late 1980’s IBM hard drive. This an IBM 3390. It stores either 1.78GB or 3.78GB. These days we’d never use a mechanical drive for that little storage as flash memory is so much cheaper. But this was cutting edge for servers of the day. And that’s why you’d pay a quarter of a million dollars for the thing.

[Dave] does what he’s known for in the video after the break. He energetically pours over every aspect of the hardware discussing function and design choices as he goes.

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EEVblog: the Electronics Engineering video blog


Have you ever wanted to see what it’s like inside of a PCB assembly factory? Have you ever wondered how digital storage oscilloscopes work? If so, be sure to check out the EEVblog podcast. The Electronics Engineering video blog podcast, hosted by [Dave Jones], was created for anyone interested in learning more about electrical engineering. While some knowledge of electronics definitely helps, [Dave]‘s thorough explanations and firsthand knowledge in the field of electrical engineering make the video blog easily accessible to beginners in the field. The EEVblog covers a wide range of electronics related topics, offering everything from multimeter reviews to GSM mobile phone audio design advice. In the latest episode (shown above), [Dave] discusses and demonstrates how to solve the infinite resistor problem, involving measuring the resistance at different points of an infinite grid of resistors that all have the same resistance. In addition to giving a detailed explanation, [Dave] created a 14 x 14 grid of 420 10ohm resistors to demonstrate how to solve the problem. While we’ve only mentioned a few episodes here, be sure to check out all 25 episodes of the EEVblog podcast and subscribe to the RSS feed so you’ll never miss an episode.

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