Best oscilloscopes & accessories according to redditors

I searched the name on the board and found it:

https://jyetech.com/dso138mini-oscilloscope-diy-kit/

Wow it's about $30 on Amazon!

You could build a voltage divider out of capacitors instead of resistors. Naturally this only works for higher frequency signals.

You could build a voltage divider out of resistors instead of capacitors. Naturally this only works for lower frequency signals, as /u/speleo_don has remarked.

You could short the output of the capacitive-voltage-divider to the output of the resistive-voltage-divider. This gives a wonderful thing called a compensated attenuator which is the circuit magic that lets your 1 megohm scope probe have 300 MHz bandwidth. It's an excellent two word phrase to use with internet search engines such as DuckDuckGo. Internet searches will lead you to many helpful places including

• (This link on amazon)
  
  
• (This link on YouTube)

For starters, never buy cheap wires or grabbers or other small things from official sources. That's ebay fodder. Or amazon.

but wait.. there are spark plug wire extensions for that exact test. allows you to pull the coil out of the tube .. install the wire down the tube and plug the other end into the coil bottom..

i don't know where to get them .. i have made them up in years past. but these are available in 1 or 4 .. https://www.amazon.com/Hantek-Automotive-Coil-Extension-others/dp/B008DI8328

i would imagine AESWave.com would have them too.

You can get 10x probes on Amazon pretty cheap. They have a voltage dividers built into the probe.
I got these ones: Oscilloscope Probes 100 MHz https://www.amazon.com/dp/B00H9UNKI8?ref=yo_pop_ma_swf

Amazon

Sure thing!

10X Probes: https://www.amazon.com/gp/product/B00ENF272C/ref=oh_aui_detailpage_o08_s00?ie=UTF8&psc=1

3.5 to BNC Adapter: https://www.amazon.com/gp/product/B00HWZS7D8/ref=oh_aui_detailpage_o08_s00?ie=UTF8&psc=1

These will allow you to test devices with the DSO Nano V3 oscilloscope up to 100 volts.

Best of luck to you!

There are some decent Arduino based open o-scopes like this one. SainSmart DSO Pocket Size Portable Handheld Mini Digital Storage Oscilloscope (DSO202)

Not as good as a big bench scope but decent enough for tinker work. I have one and I love it. I end up using it more than my bench scope actually.

I do not have a scope and I've never used one but I'm not going to let that stop me.

I've found some on kijiji in the range of $250 CDN, but with nearly no experience with scopes I wouldn't know how to size one up.

What are your thoughts on something like this:
https://www.amazon.ca/SainSmart-Portable-Handheld-Digital-Oscilloscope/dp/B00SXVUETU/ref=pd_cp_328_2?_encoding=UTF8&refRID=EM24BM53XBQSEHMWX17C&th=1

I'm using this differential probe for both channels, so ground reference is just DC negative and neutral. The laptop and scope isn't grounded.

It's an electric train system. DC source is 650VDC off the rail, the voltage will fluctuate due to motor regen and occasionally drop due to poor rail contact.

Here's some snippets from the electrical drawings.

I know a couple guys who have tried turings, and given up. I'd suggest something easier first.

Try this 20$ oscilloscope:
https://smile.amazon.com/gp/product/B00WAQGGZA/ref=oh_aui_search_detailpage?ie=UTF8&psc=1

https://www.amazon.com/gp/aw/d/B00WAQGGZA/ref=mp_s_a_1_7?ie=UTF8&qid=1500403429&sr=8-7&pi=SL75_QL70&keywords=dso138

Get a chepo pocket o-scope if you are just getting into electronics for fun.

https://www.adafruit.com/product/468

or even a goofy DIY kit.

https://www.amazon.com/JYE-DSO-138-Open-Source/dp/B00WAQGGZA/ref=pd_lpo_vtph_328_lp_t_3?_encoding=UTF8&psc=1&refRID=9JTRDYN25MFPEP76CF98

Then, if you're still interested and having fun, get a proper scope.

https://www.adafruit.com/product/681

https://www.amazon.com/JYE-DSO-138-Open-Source/dp/B00WAQGGZA

I’m terribly curious about this. However I don’t have access to an oscilloscope so I’m limited in my ability to investigate.

You’d think by now someone would’ve invented a smartphone oscilloscope adapter of some sort, maybe with Bluetooth or usb.

Instead this seems to be the cheapest option on Amazon: SainSmart DSO Pocket Size Portable Handheld Mini Digital Storage Oscilloscope (DSO202) https://www.amazon.com/dp/B00SXVUETU/ref=cm_sw_r_cp_api_i_GsaeBbKQQTB2V

Or there’s this one which seems to make a lot more sense for $20 less:
Oscilloscope Multimeter, LIUMY Professional Handheld LED Scopemeter Oscilloscope Multimeter with 200ksps A/D Automatic Waveform Capture Function, DC/AC Voltage /Current, Resistance Test with Backlight https://www.amazon.com/dp/B071F1H3PG/ref=cm_sw_r_cp_api_i_4uaeBbMKPB5A9

Very tempting. But I realize not exactly economically prudent to throw more money at investigating something that what the thing is worth. Then again a multimeter with a digital oscope built in would probably be a great tool to have while maintaining an old RV.

This is definitely not going to end without me buying an oscope. I’ve wanted one for many years and as I poke around I keep finding cheaper and cheaper options. There’s a lot you assemble yourself for $40, that looks fun. And for $60 there’s a pretty basic one that almost looks like a toy but is probably good enough. Hmm. So many choices!

Been seriously looking at some oscilloscopes lately. Any recommendations for one < $300. Lookin at something like this one possibly.

Continuing with the work on this project, hopefully i'll have some usable data this time.

I bought some of [these] (https://www.amazon.com/dp/B005O0V01E/ref=pe_825000_114657650_TE_item), 200MHz, 2 for $29. They seem to work OK. They are switchable, but I only use 10x because the probe loads my circuit less. I do suggest you use two probes the same, so you don't get skew when comparing two signals.