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Re-organizing the Office/lab

2014/05/06 By staze

Before Office Re-orgSince getting into Electronics work, I’ve had my office organized like the picture on the left. And this worked just fine when all I had was a Fluke handheld meter, a bench power supply, and a scope. Maybe also the Function Generator. But when I added several bench multimeters, and stuff was getting shifted around, suddenly I couldn’t reach the desk work area with standard probe leads (5F), or the far right part with scope probes. So, for weeks now, I’ve been contemplating re-organizing to allow for easier use of my gear.

Then, the other day, I was watching a video by Ian Johnston, and I noticed he had his scope right above the desktop, which gave me the idea to put the scope above the monitor, move my server and drobo elsewhere, and then put all the rest of my testgear above the desk as well. At the same time, I was finally going to move my Airport Extreme into the linen closet in the center of the house to provide even coverage everywhere (and hopefully resolve the dead-spot in the dining room).

After Office Re-orgTwo days later, with some extensive cleaning, and re-organizing, the picture at the right is the result. Obviously some serious cleaning has taken place between the two, but the general layout is the key change. And having just worked on a new project at the desk, I can say the new layout works MUCH better. I am able to run leads from the power supply to the desk (even the left side of the ESD mat), run a lead from the frequency counter (which has a 6′ lead), DMM leads, and a scope probe all to the same circuit and still have room to use the computer, which is advantageous since I’m working on a GPS Disciplined Oscillator that I needed to provide power, get serial output, check voltages, and check frequency output. So really, the new layout is great. Also, moving stuff off the shelf to the left let me purchase a modern Akro-Mills shelving unit to move nearly all my components to. I plan to buy another and wall mount them both, but I need to find the space for them both first. Sadly, the unit doesn’t quite fit between the shelving uprights. =/

Filed Under: Miscellany Tagged With: Ian Johnston, Lab, Office

Captain America: The Winter Soldier

2014/04/14 By staze

Captain-America-The-Winter-Soldier-PosterAnother year, another Marvel movie. In this case, Captain America: The Winter Soldier, which, as it turns out, is kind of a bad name for the movie (more on that later).

The movie starts out some indeterminate time after the events in The Avengers. S.H.I.E.L.D. (god that’s painful to type) is doing it’s usual S.H.I.E.L.D. stuff, and Captain America is doing his usual do-gooder stuff, head butting between Nick Fury, and the Captain, ensues. The cast is all back, and once again, Black Widow is the side-kick. I’m actually not sure how I feel about her being the side-kick in all these movies, but she seems to pull it off well enough.

While I never read the comics, I can assume Hydra is the ever-present enemy in them, as well as seemingly going to be the enemy in all of these movies, which is fine. Basically, Hydra survived in the usual clandestine way, and has taken over everything we thought was “good”. The Captain must fight back, and quell the new instance.

What is interesting about the title is that, the Captain isn’t the Winter Soldier. The Winter Soldier is the “bad guy” in the movie, who has even less character development than Nero from the 2009 Star Trek. He’s a good villain, but I find it interesting when they give a movie’s subtitle to the name of the baddie. There aren’t a lot of examples of this in motion pictures. “Wrath of Khan”, “Empire Strikes Back”, Bond movies, etc. Not sure what that says about the movie, or the others that use that title formula.

Anyway, the movie was good. The action was pretty well balanced, though at times did seem a bit over-long, but certainly not as long as the climax of Avengers, or Iron Man 2. I’d recommend it, it certainly ranks in the top 5 or 6 of the Marvel movies. It’s enjoyable, and certainly is one of the better sequels.

[xrr rating=4.75/5]

Filed Under: Reviews Tagged With: Captain America, Marvel

USB Tester 2.0

2014/04/11 By staze

USBTester2.0I have been looking for an easy way to monitor USB voltage and power used by devices, and while there are numerous cheap usb inline adapters to do this, and a few people that just show how to cut a USB cable so you can probe the lines, I thought both of these seemed a bit weak. Then, looking around Tindie.com one day, I found the USB Tester 2.0. It’s a very simple PCB, and some pin headers. The advantage is it provides easy voltage/current monitoring, but also provides an easy way to probe the data lines with a scope. Plus, it isn’t ugly (like a hacked USB cable would be).

I ordered the “kit” on a Friday (along with the Plexiglass base), and it was shipped from California the same day. Somehow USPS opened a wormhole, and I got the kit the next day (Saturday). Assembly was extremely straight forward via the instructions here. Took maybe 5 minutes, at most (including time for the soldering iron to warm up). Initially, I was a bit confused by the pin header holes being a bit offset from each other, but it seems to was done on purpose to hold the pin header in place for soldering, which is awesome.

Anyway, once assembled, the units work as expected. The only problem I’ve seen is that the 4mm “jacks” are a little smaller than 4mm, it seems. My dual banana plugs don’t quite fit fully. I’m actually thinking of installing some real jacks on the unit, so things will fit, but I am not sure they’ll fit very well, or not block the rest of the unit. =/ Hopefully I’ll figure something out, as I’d like to be able to use banana plugs without worrying about ruining the PCB holes.

All and all, very happy with the unit. It does what I wanted it to do, and maybe in the future I’ll buy the OLED “pack” that basically makes the unit self-contained and won’t require a meter.

[xrr rating=4.75/5]

Filed Under: Electronics, Reviews Tagged With: USB Tester

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