Welec W2000A - Worst oscilloscope ever?? - Page 1
Forum section: electronics / testgear

author: Hydrawerk
author_rank: Super Contributor
timestamp: June 09, 2013, 11:38:39 pm
content: Hey, folks, please, what's this oscilloscope like? According to the webhttp://www.welec.de/english/01_company/company_01_profile.htmthe Welec W2000A oscilloscope was introduced in 2007. It looks like a quite crap scope... It's front panel is apparently inspired by Agilent DSO6000 or DSO5000.Their web looks weird.http://www.welec.dePeople say that the Welec scope is rather bad...http://blog.frankvh.com/2009/06/07/welec-oscilloscope-watch-out/http://rtr.ca/welec_w2022a/There is also a datasheet available.http://www.welec.de/data4download/W2000A/W2000Adseu6C8.pdfAlthough the scope was introduced in 2007, it has no USB port for an USB flash disc. What the hell?Here are some photos.http://www.picproje.org/index.php?topic=21309.0The scope looks ugly inside.

author: Hydrawerk
author_rank: Super Contributor
timestamp: June 09, 2013, 11:55:44 pm
content: It's FFT is said to be crippled. This scope is probably much more worse than Owon scope.http://rtr.ca/welec_w2022a/QuoteThe scope is said to be produced in EU. The Welec company is from Germany.http://www.welec.de/data4download/W2000A/W2000Adseu6C8.pdfThis looks like an oscilloscope nightmare, folks.

author: Hydrawerk
author_rank: Super Contributor
timestamp: June 10, 2013, 12:06:33 am
content: Note the weird wires on the PCB.Oh, this scope must be a bad dream. Wake me up somebody.

author: David_AVD
author_rank: Super Contributor
timestamp: June 10, 2013, 12:30:35 am
content: So I'm guessing you wouldn't buy one then?

author: Hydrawerk
author_rank: Super Contributor
timestamp: June 10, 2013, 12:40:59 am
content: NO.

author: David_AVD
author_rank: Super Contributor
timestamp: June 10, 2013, 12:56:00 am
content: I was detecting a faint hint of that. LOL

author: nctnico
author_rank: Super Contributor
timestamp: June 10, 2013, 12:58:41 am
content: Actually there is a whole group of people working on better firmware. So if you ever wanted to add your own features to your scope, here is your chance.http://sourceforge.net/projects/welecw2000a/These scopes used to be sold on Ebay every now and then but I don't know if they can be bought from somewhere nowadays.

author: reagle
author_rank: Unknown
timestamp: June 10, 2013, 02:21:03 am
content: I bought one of these a while back on ebay from Welec store for a few hundred bucks and promptly returned. The firmware was barely usable.I know people were making their own versions, but these days there are better choices:)One thing they were good with was accepting returns

author: Hydrawerk
author_rank: Super Contributor
timestamp: June 10, 2013, 02:42:07 am
content: This is funny:http://www.welec.de/english/06_support/support_specifications_W2014A.htmWhat the F*U*C*K??QuoteQuoteQuoteQuoteQuote

author: Unknown
author_rank: Unknown
timestamp: June 10, 2013, 02:53:41 am
content: Does the company still exist? From what I remember, the company essentially went bankrupt before being able to fix the major problems with this scope, which is why these scopes were selling very cheaply at some point. Do you really consider it productive to criticize a scope that was already recognized as having major defects years ago? The open source project already acknowledged many defects, and tried to fix some.This is similar to picking up a twenty years scope and complain about its obsolete specs. The statement is true, but not very useful to anyone.

author: Hydrawerk
author_rank: Super Contributor
timestamp: June 10, 2013, 03:13:26 am
content: Quote from: alm on June 10, 2013, 02:53:41 amI don't know, but their webhttp://www.welec.destill exists so they apparantly pay for webhosting. But the last note was made in 2008.Quote from: alm on June 10, 2013, 02:53:41 amWell, not much... We have seen many old obsolete scopes, that are still OK and you don't feel that they are crap.http://youtu.be/Rd1fUHTtII8http://youtu.be/ATFGj2yRvOsThere are only few scopes that were crap when they were brand new.

author: branadic
author_rank: Super Contributor
timestamp: June 10, 2013, 10:38:29 am
content: QuoteThanks for this statement, exactly what I thought while reading the first post.My guess is that "Hydrawerk", by the way also a german guy, is just a post hunter as he is also active onwww.mikrocontroller.netwhere the main discussion to Welec occures. On the other hand it is always easy to beef others instead of doing something more productive and presenting the results to the community, because it implies the risk of being beefed too

author: Hydrawerk
author_rank: Super Contributor
timestamp: June 10, 2013, 02:47:51 pm
content: Well, I don't visithttp://www.mikrocontroller.netI am not from Germany, but from Czech Republic (it's near).I just found this Welec scope interesting. But I see that it is an old 2007 affair.

author: Stonent
author_rank: Super Contributor
timestamp: June 13, 2013, 09:11:50 am
content: I'm curious what those 4 QFPs were in the one picture, I couldn't read the writing on them.

author: Hypernova
author_rank: Unknown
timestamp: June 13, 2013, 09:21:23 am
content: Quote from: Stonent on June 13, 2013, 09:11:50 amMAX1121EGK 250MS/s ADC interleaved to get the 1GS/s spec.

author: Hydrawerk
author_rank: Super Contributor
timestamp: January 05, 2014, 02:01:41 am
content: Was this Welec / Wittig scope at least comparable to Velleman scopes? They had bandwith up to 30MHz or so. Velleman scopes were quite popular in 2000-2005, when there were no other cheap scopes in Europe. They were really basic, but they did what the specifications said. They were rather OK for the price.

author: GK
author_rank: Super Contributor
timestamp: January 05, 2014, 02:46:39 am
content: The worst portable scopes I've come across were those ones by Fluke in the '90s. We still have a couple at work in the cupboard unused that were originally bought for field servicing. They cost a small fortune in their day and were absolutely horrible and completely non-intuitive to use.

author: Bored@Work
author_rank: Super Contributor
timestamp: January 05, 2014, 10:14:05 am
content: Quote from: Hydrawerk on January 05, 2014, 02:01:41 amOh come on, you started that topic by looking at the Wittig/Welec bench scope. You even quoted the specs. Didn't you recognizes these were 100 MHz and 200 MHz oscilloscopes, up to four channels, desktop form factor, color VGA LCD display? So really what is this fixation with a seven year old oscilloscope series?Wittig tried their hands at a desktop oscilloscope. At the same time Rigol and others were coming out with entry-level desktop oscilloscopes in this form factor. Wittig failed and went bankrupt. The market's most severe punishment for producing something not good enough (should happen to more crap oscilloscope manufacturers). So what more punishment you want to see?The owners founded a new company (Welec) to sell the surplus they somehow managed to rescue from bankruptcy, or to emerge out of bankruptcy to pay off their debts. They sold the oscilloscopes at a much reduced price. So the market fixed that, too - price affecting supply and demand.At some point they published the original firmware of that desktop oscilloscope. Years ago I saw some part of it. An incredible steaming pile of shit. One of the worst embedded code I have ever seen (if we don't count Android apps as embedded stuff, and if we exclude Arduino). The best example why hardware guys with no real training in software development should never ever write something more difficult than blinking a LED.A small group of people had years of fun writing their own firmware for that oscilloscope, the only 200 MHz oscilloscope hardware platform you could get to write code for. Compared to the usual pseudo oscilloscope junk hardware like DSO nano.So really, what is your point? It is dead Jim. It is no more. It is pining for the fjords.

author: Hydrawerk
author_rank: Super Contributor
timestamp: January 06, 2014, 11:58:29 pm
content: Anybody remembers this scope Wittig Technologies 22-300? It was sold by Conrad in 2003 or so. But it is weird. According to the user manual, it has no automatic measurements.

author: echen1024
author_rank: Super Contributor
timestamp: January 07, 2014, 01:21:48 am
content: Quote from: Bored@Work on January 05, 2014, 10:14:05 amTHIS! Is an EX-OSCILLOSCOPE!

author: DL5TOR
author_rank: Contributor
timestamp: January 07, 2014, 12:46:51 pm
content: But but it's Germanso it must be a very good productahh where am i fromSo longTorsten

author: Bored@Work
author_rank: Super Contributor
timestamp: January 07, 2014, 06:12:22 pm
content: Quote from: DL5TOR on January 07, 2014, 12:46:51 pmI can restore half of your national pride:Quote

author: autoelectra
author_rank: Contributor
timestamp: November 29, 2015, 11:15:14 pm
content: Dears,I bought two of them (2+4 channel versions in 2008 for 250€+350€) , they´re sold in development stage and this was the error of manufacturer, which sold them for little prices and went bankrupt. In earlier years, this was a good price for DSO, many bought them, but customers forget:you get,what you pay fore.But now, after several years, they are improved with new firmware and better preamplifiers(OPA653 from TI), the 100Mhz versions can be updated to 200Mhz, by D.I.Y.So, I think, this is not the worst oscilloscope, but the world first oscilloscope with open software and improvements documented by customers.I like them, because of production in EU and not from China.