And what did we buy today?

Hi wrenchone,
Yes, exactly. They are great for documentation and saving machine states for later use. Mine also has a built-in arb, so I can capture a waveform and "play it back" from the arb output. That's great for capturing unknown waveforms from a good piece of gear and sending it into a misbehaving one. But even a 12 bit ADC isn't great for waveform fidelity. These new scopes can exceed $250K in price, heck mine cost as much as a cheap new car!

But on the bench looking at analogue detail or noise, you can't beat an analogue scope. Especially compared to cheap DSOs. But even mine doesn't compare well when looking at things like RF eye patterns. It is workable, that is the best I can say about it.

Hi Ray,
What is you have there (1689-9602-00/B1)? I don't remember that number when looking at the available test cables and fixtures for the 4263A. I did buy most of them that were available. You have phase shift and attenuation to deal with with leads.
 
What is you have there (1689-9602-00/B1)? I don't remember that number when looking at the available test cables and fixtures for the 4263A. I did buy most of them that were available. You have phase shift and attenuation to deal with with leads.

If you have a test fixture that mounts directly to the 4263B, then you won't need extender cables.
Here's an example of a direct fixture but with captive with leads:
https://www.keysight.com/us/en/product/16048E/test-leads.html

But if you have an external fixture with BNC socket inputs, you'll need extension cables to go between
the 4263B and the fixture.
 
Hi Ray,
Interesting option.

The BNC spacing is a standard, and you can easily connect BNC cables that are loose. All my HP fixtures mount directly on the instrument. I bought cheap BNC Kelvin clips for non-critical work and they work as well as they could.

Hi wrenchone,
12 bit is pretty good. Standard is 8 bit. Noise becomes a problem at higher resolutions. In fact, input noise is one spec people should pay attention to on a DSO.
 
Well, 8 bits resolution is normal, and all scopes are not equal at 8 bit. Your little bitty 60 MHz digital scope is probably pretty decent. I have an Agilent 54642D that is 8 bit, and it was expensive as heck. Yours may outperform it within it's bandwidth.
 
6000 led diodes, all Siemens, for salas boards and other stuff using led as reference.
1000006040.jpg
 
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Saw these amongst the other junk headphones at the local Goodwill today. They actually powered up off the shelf and while still in the store, I eventually figured out how to open the BT pairing. When paired with my phone, they played music. Picked them for $7.99. Looks like its shows up in their phone app too; I'll leave the eq "neutral" for now. I charged until steady green through a USB type C, app says 94% battery.

Lucky me! Of course didnt get the charger/stand, but c'mon...

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Yeah, sometimes. I was in the vicinity doing some other business and decided to stop by. You'd be shocked if you saw how long it took me to finally decide to buy them. I had no idea what they were when I first picked them up; they sorta looked the part; my spider sense was tingling... If they didnt have any residual charge, if I didnt figure out how to connect them via BT, I'd have left them behind not knowing they once commanded a $500+ MSRP.

Thanks, "37 Hours" ;')
 
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