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Test Equipment Anonymous (TEA) group therapy thread

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tautech:

--- Quote from: Specmaster on June 03, 2018, 05:56:14 am ---Problem with the extra features / functionality being built-in is that they aren't as good as a dedicated piece of hardware for a given function.
--- End quote ---
True and everyone has differing expectations.
So a buyer might think:
Will it work well enough to suit my needs and I then not need to buy another piece of equipment ?

--- Quote ---Also you may require to be able to use both or more functions at the same time which I don't believe is possible with a DSO?
--- End quote ---
Off the cuff there's 4 examples  that come to mind.
DSO's with MSO (LA) capability.
Split screen FFT mode.
Decode.
Inbuilt AWG.
All were once the domain of dedicated instruments but are now available in several basic entry level DSO's.
We'll see more of it I'm sure until a manufacturer spots a marketing opportunity to offer a good bare bones basic DSO and then the clock starts at zero again.  :horse:


--- Quote ---Also if the DSO fails, then you are also bereft of the other pieces of gear that it attempts to simulate, that in my book is just a no no. No audio phile would accept a all in one unit for the same reasons.
--- End quote ---
::)
We used to say that about a car with electronic ignition, then EFI, ABS, Cruise control, Climate control, Auto locking, ..............


--- Quote ---I believe it has become nothing more than a cynical means of justifying the higher starting price as you mentioned, factoring it in, the cost is not bad, looks like an attempt to minimise the higher then it needs to be price.
--- End quote ---
Of course...................or requests from customers to add functionality.

C'mon, how can this be a bad thing for anyone getting into the industry ?


--- Quote ---Fact is, it suffers from the constraints I outlined above and also of course many people will already have the various items already in their home labs.
--- End quote ---
Sure but many don't, they really don't. I've acquired a bit of gear over the years but for those decades younger than us they haven't had to opportunities to gather what we have. Please understand and accept that.


--- Quote ---I doubt it costs that much to add in these mediocre extra functions anyway as with digital systems, most of the hardware is already there and is more software driven to make the changes?
--- End quote ---

--- Quote from: Mr. Scram on June 03, 2018, 06:11:55 am ---Developing software features costs time, effort and money too. I know the hardware crowd tends to underestimate that, but if you just look at the horrible software that's consistently supplied with even very expensive logic analysers you know that proper software development isn't trivial.
--- End quote ---
You nailed that one.

bd139:
Just a point as well. Us software dudes are more expensive than the hardware dudes now  8)

tggzzz:

--- Quote from: med6753 on June 02, 2018, 02:27:40 pm ---I've worked on this for several hours and I find myself getting a little aggravated so it's time to stop and pick up on it later. I had to pull the DM44 to get it out of the way. The Vertical Board itself is free in the back and I'm slowly working towards the front. I will be pulling and labeling all the coax. And there's at least two other wires that will have to be unsoldered in addition to the delay line. On the front panel I have everything pulled except the shaft for the Channel 2 variable pot. The allen key isn't long enough to reach down to the set screw so I'll have to be real careful when I pull the board out so as to not break that shaft. I have a few questions....

Do the BNC's pull WITH the board or will I have to unsolder them?

I assume the Vertical Mode switch board behind this board pull as one unit, correct?

Right now I think it's 50/50 that I'll ever get this back together in one piece. But I'm not giving up.

--- End quote ---

Some pictures of a Tek 475: https://entertaininghacks.wordpress.com/2018/02/27/renovating-a-tektronix-475-timebase-switches-potentiometers-and-hf-response/

tggzzz:

--- Quote from: bd139 on June 03, 2018, 07:15:11 am ---Marketing droids would prefer two things done poorly as they can cover that up with enough lies and sell two things. Years in “enterprise” software has taught me that. They don’t like me doing product evaluations now as the word lie usually goes in it several times.

--- End quote ---

So true, writing "enterprise" software was the only time I was required to produce something of which I was ashamed. Resistance was futile, e.g. the team's repeated response on encountering a null pointer exception in a unit test was to catch it and ignore it :(

As CAR Hoare[1] put it in 1981, "There are two ways of constructing a software design: One way is to make it so simple that there are obviously no deficiencies, and the other way is to make it so complicated that there are no obvious deficiencies. The first method is far more difficult."

https://en.wikiquote.org/wiki/C._A._R._Hoare

bd139:
That’s a perfect quote that sums it up well.

My mantra is about promoting managing complexity along with features and requirements. I am saying I told you so a lot. This is slowly turning into credibility as things go wrong. That’s what software companies look like inside. A giant rug which had dead bodies piled up under it.

On the outside it’s a happy shiny facade of perfection because it’s cheap to pretend.

Anyone want to give me an EE job? :D

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