It's a bulky and very heavy CRT scope from the 90's, so I can only assume you are pondering it because of the low prices on EBAY and because you either have an affinity for CRT scopes or experience with LeCroy? Even so, due to a close relationship between the two companies, many modern SIGLENT scopes are similar or identical to modern LeCroys.
The simple answer is, if you understand how to use a scope, then most scopes will generally provide you with good "analog" information when it comes to diagnosing vintage Macs. Since you mentioned "bits" though, I assume you are more digital focused. I can display squarewaves on my scope just fine (within bandwidth limits), and I prefer using my scope when I want to look for noise on those waveforms. But of course, a dedicated logic analyzer (or a modern scope with such features built-in) is what you need for analysis of multiple waveforms at the same time, which may often exceed 4 in number. Meaning, a 4-channel scope will give you 4 and only 4 channels, if it doesn't have a dedicated logic analyzer cable.
With that said, I purchased a
Rigol DHO804 within the past few months and found it to be outstanding. No logic analyzer because I already have one of those, and the scope offers 4 channels. Very compact, light, low cost, and has a nice hi-rez color LCD too. Plus the scope is 12-bit, which is pretty incredible. It can be
hacked to 100MHz BW and full memory, and you can cheaply
add WIFI. I did all those hacks/mods. They work great. Even if you don't add a $10 WIFI USB dongle, you can still save screenshots to onboard memory and write them out to a USB thumbdrive too.
Now while you may get feedback from myself and a few others here on TinkerDifferet, you really need to check out the
EEVBlog forums before making your final decision because a lot of what has been said has already been said there. And those guys live and breath scopes over there, so if any of your questions are not answered here, don't be afraid to register and post something over there.
