What kind of oscilloscope to use?

[Kikenzi]

Hi there,
Im novice in eev and i have question about what oscilloscope to buy i dont want to spend lot of money (i just begin learning about electronic). I saw this video
where Dave connect oscilloscope to photodiode and measure and try to get a binary code. I want to start with something like this but i dont know what kind of oscilloscope is enough for this case: 20MHz or 100MHz and analog or digital..i need hellp with that.

Thank you all for your advices.

[Arjen_Arg]

The biggest question here is: "What's your budget?" In any case, the king of bang per buck here is the Rigol DS1054z. At 400 U$S it's a 4 channel 50MHz scope, but it can be hacked to 100MHz.

Check this awesome chart a user made:
https://www.eevblog.com/forum/testgear/digital-oscilloscope-comparison-chart/

[xani]

You basically need to make a list of what you are doing now and what you might want to do in the future *then* start shopping around.

While typical bench scope is very versatile tool it might be an overkill for you, or not the right tool.

For beginner I'd advise to look into something like Analog Discovery 2, Dave has reviewed previous version:

[macboy]

Hi there,
Im novice in eev and i have question about what oscilloscope to buy i dont want to spend lot of money (i just begin learning about electronic). I saw this video
where Dave connect oscilloscope to photodiode and measure and try to get a binary code. I want to start with something like this but i dont know what kind of oscilloscope is enough for this case: 20MHz or 100MHz and analog or digital..i need hellp with that.

Thank you all for your advices.

For this specific task, even a DS0138 (<$20 DIY kit) will do. The DS0138 is only single channel, 150 kHz, and 1 MS/s, but the signal is only roughly 40 kHz square wave. It will be easily resolved by that little scope. There is also the DS0112A which is 2 MHz bandwidth, 5 MS/s, and touchscreen interface.  If it is all you can afford then it may be a good choice.