Pardon a top post, plz, I'm on my phone again... Oscilloscopes are a great tool for either (a) analyzing analog waveforms, if you know what you're doing, or (b) looking like the absolute incarnation of technological tomfoolery, if you don't.
Mostly I fall into the second category. My scope is a secondhand, pre-moonshot Tektronix 422. It weighs about as much as a good stout WW2 battleship and probably has just as much metal... it certainly has almost as many controls, and the dizzying array of knob and levers and buttons means I have virtually no idea how to work it. I do have the manual and a lot of bad excuses, though! ...anyways... These links may be of some use. The first couple are a little outdated, but all should be serviceable... https://hackaday.com/2016/01/27/a-tale-of-two-sub-100-oscilloscopes/ https://hackaday.com/2017/11/09/review-jye-tech-dso150-oscilloscope-kit/ https://hackaday.com/2017/11/18/ds212-oscilloscope-review-open-source-and-great-for-hacking/ ...and, if you're "Robinson Crusoe on a Desert Island" desperate (note, I wouldn't trust myself with this one!)... https://hackaday.com/2017/04/06/hacking-a-vintage-tv-into-an-oscilloscope/ There are also dead-simple recipes out there (Forrest Mims, /et al/) for o-scope builds using (literally) a few chips and a double-fistful of LEDs... but those badly lack the sort of display resolution you need for this. HTH... Chris On Sun, Sep 9, 2018, 11:26 PM David Niklas <[email protected]> wrote: > Hi, > I need help here. I was designing the power supply of my laptop and I > noticed that some power bucks and step up/down converters (Which both > seem to do the same thing. Please tell me otherwise.), produced a more > stable power supply than others. In order to find out if they are truly > suitable for suppling power to sensitive electronics I've heard that I > need an oscilloscope. > I currently own: > > 1. #222634543946 > "DC-DC 10/12/15/20A 150/250/300/400/1200W Step up Step > down Buck Boost Converter" > > 2. #152710861245 > "2A DC Boost Step-up Adjustable Converter Module 3v-24v to 3.3v 5v 6v > 9v 12v 24v" > > After learning that some guy with an oscilloscope reviewed these, I'm > planning to get: #122923215542 > "6 Pack MP1584EN ultra Small DC-DC 3A power Step-Down > Adjustable Module Buck M2H3 6 Pack MP1584EN ultra Small DC-DC 3A power > Step-Down Adjustable Module Buck" > > I've seen many oscilloscopes online on crowd funding campaigns. I've > never been certain of which to get, if any. The real professional ones > are out of my budget range of about $100. *I'll pay more if I must*, but I > already did not anticipate the need to actually evaluate what should be > solid products. > I probably should find a solid adjustable DC power supply to test these > with vs. an old laptop power pack or some batteries. > What I need some of these things to do is to take a dynamically variable > voltage as input (Li-Ion batteries in series), and produce a constant > voltage as output. Others I need to just convert to the correct voltage > from the old laptop power pack. > > Thanks! > David > > _______________________________________________ > arm-netbook mailing list [email protected] > http://lists.phcomp.co.uk/mailman/listinfo/arm-netbook > Send large attachments to [email protected] _______________________________________________ arm-netbook mailing list [email protected] http://lists.phcomp.co.uk/mailman/listinfo/arm-netbook Send large attachments to [email protected]
