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Hi Raymond, This was merely a quote. I never tried "useful", whatever it means, deliberately. The situation actually is more complicated, at least with my 2232, 100 MS/s, record length (about) 1000.

Ah. Arrgh. You remind me of things such as the Kraft (or Kraft-MacMillen) inequality and other strange information theory topics. My head hurt when I first figured that stuff out (for work: lossless

Yet another example of your very concise yet very precise way of putting people on the right track. Thank you very much! Raymond

That's called a rule of thumb. Not all thumbs are of equal size. :) "Highest frequency" is actually problematic because there do not exist truly bandlimited signals. If there were such a thing, then

I was always told to get 2.6 samples of the highest frequency.

That is where the knobs stop in the 1x range. You should see that there are two small windows above the knob and behind the numbered collar. The "5" on the clear collar should stop above the left

Which is why the Nyquist sampling constraint does not assume a sinusoid, nor is it expressed in terms of the fundamental. It is properly expressed in terms of the bandwidth (and not the 3dB bandwidth,

I assumed that someone would've answered you earlier, but I don't see any reply (but I only just got your post, so maybe relevant messages are stuck in the Great Cloud somewhere). In any case, the

Any assumption that you are looking at a sine wave is frankly na?ve. From experience if you are using a DSO that's sampling at under 10x the fundamental frequency of a signal (e.g. 1GHz square wave

Just acquired a TDS430a at auction that works but has damage to front and back bezels from a drop. Are these unobtinium? Especially the front bezel (it's intact except for the tabs that hold it secure

Hello everybody! My 7104 started having problems in displaying traces and readout characters, it did not happen suddenly, sometimes after switching off and on again everything went back to normal

Just acquired a TDS430a at auction that works! but has damage to front and back bezels from a drop. Are these unobtinium? Especially the front bezel (it's intact except for the tabs that hold it to

The VOLTS/DIV knob for Both channels 1 & 2 will not rotate past the 5 volt indicator. The lower ranges act normally.It would be nice to have the 10/20/50 Volt ranges working. Searching 'here',it

I can't get eother Chanel 1 or 2 VOLTS/DIV

Just acquired a TDS430a at auction that works but has damage to front and back bezels from a drop.? Are these unobtinium??? Especially the front bezel? (it's intact except for the tabs that hold

I've used 3M surface mark remover: https://www.digikey.com/catalog/en/partgroup/mark-remover-8001/27728 To clean up equipment and it's worked pretty well. You need to wear gloves when you use it

Hello everybody My 7104 started having problems in displaying traces and readout characters, it did not happen suddenly, sometimes after switching off and on again everything went back to normal

Hi Jeff: First of all... we (at least I) have to give a shout out to Claude Shannon... and at least one other! (Shannon, Armstrong, and Mason are absolute heroes of mine!) Next... the theorem named

Steve, I'm sorry to advise the others here to disregard your post. You have made several profound misstatements here and elsewhere. If memory serves, you once posted (maybe on HP groups.io) similar

Holger, Well done; especially the wizard! This might be the world’s first time that USB has connected to magnetic core memory.