21 buck digital o-scope?

[pinkjimiphoton]

just saw this... thinking about biting. its SMD but nothing looks too bad on it in the pics to be able to do...
what do you think?

https://www.banggood.com/DSO138-DIY-Digital-Oscilloscope-Kit-SMD-Soldered-13803K-Version-With-Transparent-Acrylic-Housing-p-1051616.html?gmcCountry=US&currency=USD&createTmp=1&utm_source=googleshopping&utm_medium=cpc_elc&utm_content=frank&utm_campaign=pla-ele-diy-us-pc-0409&gclid=EAIaIQobChMIg6mU6PD22gIVFS0ZCh2FAwqZEAkYECABEgKfcfD_BwE&cur_warehouse=CN

i'm willing to take a hit and check it out if the community thinks its worth trying... and if its good, hey, who can't use an oscope thats under 25 bux?

[vigilante397]

For a simple o-scope I think it looks pretty good. It looks like it's only good up to 5V input, but I guess for something that runs on 9V that's not shocking. So for general guitar use I think it's cool and definitely worth 25 bucks. Hell I might pick one up and throw it in a box then run a splitter off my pedal chain to see my guitar's waveform in real time

That being said if you're looking at high speed digital signals and the like probably not your best bet, but for guitar stuff, why the hell not?

[pinkjimiphoton]

that sold me nathan. triggers being pulled

[reddesert]

Here is my build thread / report of the DSO 150 kit.
http://www.madbeanpedals.com/forum/index.php?topic=26815.0

The DSO150 is a slightly newer model (and comes with a plastic case). I got it from banggood, and would recommend them as a vendor (there are others some of whom are selling knockoffs). You can get them with all the SMD pre-soldered, so you only have to do the through-hole and assembly.

The build guide was very good. The DSO150 is good up to 50V, I think, and perfectly adequate for audio and into the tens of kHz range (I used it on the ultrasonic clock of an MXR Envelope Filter, at ~30 kHz). Sometimes I would like a dual channel scope, but for $20 it's a remarkable deal.

[vigilante397]

I just sold myself too. Did a little research, turns out it can actually handle 50Vpp on the input up to 400Vpp with a 10:1 probe. 12 bit sampling, 1Ms/s, 200kHz analog sampling. I'm going to have to pick one up as well The PCB is a little too big to fit in a 1590B, but I may be able to trim it or just go for 125B.

[pinkjimiphoton]

it comes with a little plastic case already.
i bought that and the 9 $ frequency counter kit, too. looks pretty good!

[thermionix]

banggood.com?  What were you looking for?

[DIY Bass]

I have one.  I had to buy a case separately for about $5 or so.  For the price I really like it. Was my first attempt at SMD soldering and didn't take too much to get going.  It is pretty handy.  The display will give you readouts for things such as frequency, Vmax, Vmin etc and you can hold the waveform. Would be great if it had the option to download to a computer, but it doesn't. Still, for what you pay it packs a lot of bang for the bucks.

[BluffChill]

I bought the DIY kit for this - Really useful buy if you only occasionally need a scope like me. Just be careful if you get the kit version - several SMD parts need a steady hand - I overdid and desoldered one of the pads and it just came off on the iron. Fortunately it was part of the DC rail so easy to jumper elsewhere, but it had me tearing my hair out.

[Paul Marossy]

That looks like it could be a useful tool for real cheap.

On a side note, I am the only one that thinks "banggood.com" sounds like a porno website address? 

[DIY Bass]

I haven't built many pedals (so far....) but when I finish one I run sine wave into one end and use this to check the output - both for signal getting through the pedal and also to make sure I haven't done something disastrous that could fry an amp when plugged in (before it's boxed of course).  Pretty handy for troubleshooting as well.

[Marcos - Munky]

I have one of those, but actually never used it. The reason: it calls for an positive center power supply, which I don't have and I'm lazy enough to build an adaptor . Mine came with everything soldered, but the acrylic case was a pita to assemble - until I noticed the one the seller sent me with the scope was the wrong one.

[pinkjimiphoton]

banggood.com?  What were you looking for?

holtek ddl chips actually.... pretty funny, cuz there's an option for a checkbox to "hide banggood" on the box lol

[pinkjimiphoton]

most of these things if they have a power jack are set up for center positive. i just wire em up for the more normal negative tip and use a stomp box style power jack instead.