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Wholeheartedly agree with Ped! Again, excellent effort. If you decide you want some help/tips/etc feel free to ask =) . We've got a whole thread devoted to Tesla Coils down in the geek section down stairs.

Re: Suggestions on variable DC power supplies. Yeah, you're right about bandwidth mostly being about the 3db signal amplitude point, but it ties in with timebase as well. I hadn't heard of or seen a scope that can trigger on a significantly higher-than-bandwidth signal, but none of the CROs...

Re: Suggestions on variable DC power supplies. Sorry for double post, it's not letting me edit. "Annoying visual noise" was brought up regarding the entry level DSOs, I'd like to show what the CRO version is; I was testing a possible SRVTTC hybrid design and this is what I had to contend...

Regarding AVI file playback; just don't use MS's garbage applications. VLC, as posted above, iTunes, etc are the way to go.

Re: Suggestions on variable DC power supplies. If it were my money I'd spend the $50 on the newer model. Btw, you never think you need 4 channels until you do. Haha. Oh and also you can scope live connections by doing the "poor man's differential probe" trick, which ties up two channels PER...

AFAIK his QED book and "Rules of QED" as referenced by collegiates are two different pieces of literature. His QED is just the fleshed out dictations from a few of his lectures, and they're reformatted to be discernable by anyone with 1950s era high school math skills (aka, me, XD ). My version...

A common misunderstanding to Schrodinger's cat type events: it isn't the fact that we are watching something causes a change in the outcome, it is that our tools and methods of observing something have side effects which alter the state of what we're watching, and this alteration is what causes...

Yeah, I looked up the specs for the Surface Pro 3 and it should run win10 fine. Idk then, there's obviously compatibility issues or a high rate of install corruptibility. Still, four machines here of varying hardware running it flawlessly fwiw.

Re: Suggestions on variable DC power supplies. To scope a welding machine there's no off-the-shelf scope for the job, what you need is a current probe and then any capable scope set up properly. You pass the conductor through the current probe and then the voltage across the probe is...

Re: Suggestions on variable DC power supplies. Hehe, that they do. I love properly working tube equipment really, I mean I REALLY do, but they are hard to come by and expensive to repair. As much as I love my old scope I'd pick up a rigol in a heart beat if given the chance. I mostly do...

Re: Suggestions on variable DC power supplies. Old scopes do take up a tremendous amount of room, be forewarned. My scope is roughly 14" x 6" x 26", with the long axis parallel to the surface you put it on. It's basically half of my electronics shelf. Edit: Oh and it weighs over 35lbs.

Re: Suggestions on variable DC power supplies. Sub-par compared to those two; in that price bracket a well cared for used Tek or new Rigol are the bee's knees, as they say. However, if you can find a good deal, really any well-cared-for fully operational scope is worth it as long as it meets...

Re: Suggestions on variable DC power supplies. Tek's are awesome, but also awesomely expensive. Best bang for the buck is still the Rigol DS1052E (or some model similar, it's ~$400 new). Under this price point you have to look for used, and sometimes into analog used. You need 2 channels with...

Re: Suggestions on variable DC power supplies. Cyp's skilled and equipped enough to fully build, let alone repair, any PSUs he has or might need, even aside from his massive rapport with the community. I'd have no concerns buying such used equipment from him.

That should work well, DWU! @Red Cowboy, yeah we're nearing 100 pages now, so I don't expect anyone to read through all of it anymore, hehe. Though there is a tremendous amount of usable and pertinent information buried in the thread as well as many wonderful build media.

Get proper ventilation on it first and foremost though. Then bump the current to 7A and see if it comes to life.

Ooh that 612... hope it goes to a very appreciative home! Sadly I cannot partake as I just scored an intensely rare specimen of machined U238 so my budget is shot =/.

Re: 589nm, 594nm HeNe Very, very good prices here folks, grab them while you can. Also, someone buy his LPM already dammit because I have one I need to move as well =P !

There's always some xray production when an electron is accelerated in a vacuum and then strikes a high density target, the question is how much xrays, and how much can exit the envelope. Based on the glass fluorescence pattern and the internal plasma pattern it looks like the tube pressure is...

Now do a shot of 593.5 and 594.1 side by side to see who can tell which is which! =P Kidding aside that is a really beautiful labby, excellent score!