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Test Equipment Anonymous (TEA) group therapy thread

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tggzzz:

--- Quote from: Specmaster on May 21, 2018, 06:52:47 am ---
--- Quote from: tggzzz on May 21, 2018, 06:42:50 am ---Caution.
There's too much politics creeping into this thread,.
There's too much vertical pagescrolling due to repeated large photos.

--- End quote ---
Could have been a lot worse if I'd not been very picky and selective because I took over 1200 photos over the 2 days and almost every single one is a "keeper" [emoji16]

--- End quote ---

Note the word "repeated"!


--- Quote ---Hhmm
I must be getting at this as it was not always the case..

--- End quote ---

Old skiing motto: if you don't fall down 10 times a day, you aren't trying hard enough.

Berni:

--- Quote from: bd139 on May 21, 2018, 07:07:01 am ---Have something on topic instead. This is why I like analogue scopes. This is the output of a discrete product mixer running two signals close in phase and frequency. You can see the frequency relationships here as the mixing product drifts slightly. This sort of stuff looks ugly on a digital scope.

--- End quote ---

Nice fluid motion alright.

Tho you can get pretty close if you pay enough for your digital scope. That's the reason i'm sticking to my Agilent MSO6000, so far its the most analog like digital scope i have used. Quick few second boot time, all the controls respond instantly, fast update rate(100k waveforms/s) and a display with enough resolution to make it impossible to see the pixels.

bd139:
Yep but this was £30. Many less zeroes :)

If I was running a business I’d probably hit a Keysight MSO though

Specmaster:

--- Quote from: bd139 on May 21, 2018, 08:19:31 am ---Yep but this was £30. Many less zeroes :)

If I was running a business I’d probably hit a Keysight MSO though

--- End quote ---
I reckon that could be said for a large percentage of the people on this forum, I know that I'd love to be able to afford one. The bottom end of the DSO market just don't cut mustard in terms of display, insufficient pixels and general graphic capabilities. Yes they do have some very clever tricks etc but they also have other failings.

From mobile device so predictive text might have struck again [emoji83]

bd139:
Yeah I have to agree. While the DS1054Z is crowed around here as the bee's knees for bottom end DSOs there are too many compromises not to make it frustrating to use. It's noisy, laggy, the UI is crap, the controls are soggy and the probes are just shit. You can get the job done but it's like living in a snake pit.

If I'm honest I'm finding it hard to need a DSO. For digital stuff a Saleae does the job. Really slow stuff, a logging DMM does a beter job as it has some proper measurement resolution (U1241C does 40 readings per second at 10,000 count resolution).

And for that twilight zone in the middle, where the DSO usually wins, the trick is to make your one shot event repetitive! Usually employing the function generator, a BJT and a couple of resistors to accomplish that.

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