Products > Test Equipment
Why did Tektronix stop making the great scopes?
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Wuerstchenhund:

--- Quote from: LabSpokane on December 28, 2014, 02:51:36 pm ---What specifically do the high end Lecroy scopes offer that is unique? 

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For example, highly advanced maths and signal analysis capabilities which generally exceed what you can find in Agilent/Keysight and Tek scopes. And this is even true for older LeCroy scopes.

LeCroy is also the only manufacturer that offers stuff like a 100GHz real-time scope (Agilent/Keysight only do 63GHz, and Tek is still stuck at 33GHz). They are also the only company offering scopes with up to 80 channels (at 36GHz) or 40 channels (50GHz):
http://teledynelecroy.com/oscilloscope/oscilloscopeseries.aspx?mseries=390

Admittedly their low end offerings (rebranded Siglent scopes) suck but their midrange scopes are top-notch, and their highend is different than what other vendors consider "highend".


--- Quote ---(I don't know the brand at all.)
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They're not as mainstream as Tek or Agilent/Keysight, but LeCroy has always been considered "the Mercedes amongst scopes". Their origin is high power physics and there are some conceptual differences in their scopes, but the analysis capabilities in LeCroy scopes is and always has been second to none. Their other advantage is their long-term support (any scope is fully supported for 7 years after end of production, and on a "best effort" basis after that; LeCroy even repairs the old 9300 Series for which production was stopped in 1998!).
Alex Eisenhut:

--- Quote from: Wuerstchenhund on December 28, 2014, 03:08:25 pm ---LeCroy has always been considered "the Mercedes amongst scopes".

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Does that mean the electrical systems start crapping out after 18 months? Not something I'd want in a scope...
Rupunzell:
Like it or not, all that analog stuff is the foundation of all electronics. If there is a lack of understanding of how it works, basic problem like why a simple voltage regulator IC does not work.

As for "modern" complex signals and systems, what are the very basic foundations upon these complex signals made from?

It is easy to be critical of stuff one does not understand with no interest when the topic is out of their expertise, yet the very foundations of modern electronics is built upon these foundations.


Bernice





--- Quote from: Wuerstchenhund on December 28, 2014, 12:37:14 pm ---
And as a teching tool, serious? Unless you want to train museum curators the idea of using a 547 or 465 for teching EEs is bonkers. These scopes tech them very little that is relevance to a job as EE in 2015, these boat anchors are useless dealing with any of the complex signals modern technology works with. Using them as teaching tools would be a huge dis-service to your students because the time wasted on teaching how life was in the 60's could have been used for actually useful stuff like how digital scopes work, what their limits are and how to employ them for signal analysis. It may be nice for a short demo on how life was back then but that's about it.


--- Quote ---The price one pays for smaller, lighter, portable and all that (modern DSO) comes with a cost and it is not initially apparent.
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What price? Not buring 1kW for a primitive 50MHz scope which takes 20mins to stabilize to become usable? Not having mechanical switches which corrode and fail over time? Not having to re-adjust tons of analog trimmers and potentiometers to compensate for the shift due to aging (something modern DSOs compensate for automatically through self-adjustment)? Not needing to hunt for obsolete components which are out of production for decades? Not having to guess what the signal parameters are because the modern scopes can actually analyze it?

I'm honeslty curious, what is this non-apparent price one pays for modern scopes you're talking about?


--- Quote ---I'm still using a tek 7104 at work, there is nothing modern that can replace it for the work I'm doing.
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No offense, but unless your work is fixing vintage scopes or doing some simple analog audio work this says much more about you being stuck in the past than about the qualities of the 7000 Series.

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Wuerstchenhund:

--- Quote from: Alex Eisenhut on December 28, 2014, 04:55:29 pm ---
--- Quote from: Wuerstchenhund on December 28, 2014, 03:08:25 pm ---LeCroy has always been considered "the Mercedes amongst scopes".

--- End quote ---

Does that mean the electrical systems start crapping out after 18 months? Not something I'd want in a scope...

--- End quote ---

I'm pretty sure that's not what is meant. It also doesn't mean the bodywork will start corrode within the first 2 years and that you'll need a new door or hood after 4 years  :)
LabSpokane:

--- Quote from: Wuerstchenhund on December 28, 2014, 05:38:07 pm ---
--- Quote from: Alex Eisenhut on December 28, 2014, 04:55:29 pm ---
--- Quote from: Wuerstchenhund on December 28, 2014, 03:08:25 pm ---LeCroy has always been considered "the Mercedes amongst scopes".

--- End quote ---

Does that mean the electrical systems start crapping out after 18 months? Not something I'd want in a scope...

--- End quote ---

I'm pretty sure that's not what is meant. It also doesn't mean the bodywork will start corrode within the first 2 years and that you'll need a new door or hood after 4 years  :)

--- End quote ---

At least you didn't call it the Jaguar of scopes, because then I'd ask you if it had a glove box for all the knobs that fell off.

Thanks for the insight.
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