EEVblog  

thekaduu Glad to hear, thanks for the support.

EEVblog now thanks to you I speak Australian.

FFcossag I've actually changed something subtle in the rendering. Motion should be sharper.

Sir Why Ah, the old Hung Chang! The college lab scope of choice back in late 80's...

Ian Muggeridge Not in the general sense, no. It's going to be quite specific to the type of product.

***** Use two probes, subtract one channel from the other. Poor mans diff probe.

EEVblog Lots of differebtial isolation devices will help back you up on that. The energy harvesting bias supply for getting the measurement domain centered on 0 then becomes the bigger challenge...that or testing one's coax bonding for EMI rejection.

EEVblog Doesn't look like much exist, kickstarter anyone?

***** THAT...would be really useful. Many options come to mind.

Mrpsychotehpyro Imagine the possibilities! freaking hell ! c'mon people someone out there? do it! do it! you can do it!

arcadeuk Are you sure it defaults back to 10X every time it boots? That sounds wrong.

I can confirm after testing, that it does default to 10x, if you have the scope set to reset settings on power on

Andy Bushnell I spoke before I heard the whole video.

Steven G I've got a video on that! ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-KFCRB4d991E.html

ppdan Not unless you set the software to 10X in which case you don't have to do the math it does it for you.

I always wondered why "cheap" scopes without the "auto sense" don't permanently display the multiplier on screen. For example on the Rigol DS1054Z there is enough room in the bottom bar to show the "x10" or whatever setting next to the "V/div". Even experienced users can sometimes be fooled by this, although it'll probably only last a few seconds (has happened to me : "why is that reading so high ... aw yes, nevermind")

tim a Retractable hook tip

SirArghPirate As good what the datasheet spec says. Scopes are usually only a few percent accurate.

Jeremiah Lowe It doesn't need power, it's just a regular "passive" probe. Only "active" probes need power. 1GHz is as high as passive probes 10X divider probes can go.

Didnt know that Im a beginner just got my first scope 3 days ago from a college its an old AN/USM-281 unbranded analog scope the guys at Morehead college gave it to me

Включи делитель на щупе

pvc988 Only for people named Luke.

trigg99 The one that comes with it.

Yeah, if you don't know what knob you're turning, you shouldn't be touching expensive equipment.

Arnoldas Sarnauskas Damn!

masat87 I tried that in one of videos using a long exposure.

masat87 Lol, you should probably watch the video he linked to where he does exactly that...

masat87 Probably not. Chances are that the analog signal processing system will aready limit the bandwith in a way that prevents most of the noise from ever reachign the screen. Additionally - the phosphor of the screen is usually of a type that exhibits a considerable afterglow - therefore any fast noise that was not caught by the electronics will be integrated into a slight halo around the trace, but not distinct patterns....it is an optical low pass, if you will, designed to present a more readable trace from a slow or erratically moving beam

TheHue's SciTech I watched that (although a while back), but the effect of the long exposure was different from what I imagined for the high speed camera.

+HalfSpeedMastering thanks for the help.

ForViewingOnly No option to customise the controls like that.

ForViewingOnly Hmm, clockwise is typically thought as UP, and counter clockwise as down.

EEVblog OK, thanks Dave.

Richard Smith Yeah, I think my brain is just having problems with this on the scope. This is the only device I own where a rotary knob is used to go up and down a menu!

ForViewingOnly I'm dyslexic, so I never know the right way instinctively, and have to refer to my dominate hand everytime, so I can understand how frustrating that might be if its opposite of your expectations though :)

qoaa I think sellers are asking too much for them. I bought 2 Hitachi scopes from eay, expect to pay around $100 for a 60MHZ scope. I have a V-650F. Try to buy one that is shown powered on with a trace showing. Most sellers don't know how to test them so they usually list them as is.

Bri G. thanks! I do have a mentor, he's a retired air force, and has masters in electronic engineering. He's been helping me as I run into questions, problems, confusion. I have a good multimeter, but he says I need an analog scope. That I should start with an analog and so I can see what my build is really doing, and learning about phases, 90/180 out of phase situations. He's a fan of Tektronix and for a beginner he recommended either 2215 or 2225 to save money but his advice is don't go over $100 for those 2 models. He deliberately wants me to stay analog and simple as I'm a novice. I'm a ham operator so I knew the basic equations, but now I'm putting it into practice and also have books home studying theory. Thanks for reply, it does seem many scopes on eBay are overpriced. One listing I laughed, a guy said he got scope free from store that went out of business that was gonna dumpster it. He knew nothing of it, it was a tek 2215, it powered on but no probes, as is starting bid $300. I was like wtf?! :-P

qoaa I have 2 Hitachi scopes, was going to give one away, it's old but works really well, will include a probe with it. All you have to do is pay for shipping.

EvilPlagueDoctor There you go!