What to buy gwinstek1072A U or TEK1000B EDU 70 MHz ?? - Page 1
Forum section: electronics / testgear

author: sachin11
author_rank: Newbie
timestamp: July 08, 2015, 07:55:54 am
content: Hello everyone,I am a beginner in hobby electronics, i am looking to buy a DSO and i am stuck between two choices that is instek 1072AU and TEK 1000B EDU 70 MHz , both are 2 channel , 1 Gs/sec oscilloscopes. memory depth in case of instek is 2Mpoints whereas it is 2.5kpoints in case of Tek variant. But i have seen that mostly Tek is used in all labs and research institutions in india. so i have a fair bit of idea and experience on working with Tek scopes but not on instek. So what shall i go for (prize is almost same for both) Does memory depth play any important role in analog measurements? or is it at all necessary while making a choice between the two?

author: tautech
author_rank: Super Contributor
timestamp: July 08, 2015, 08:16:46 am
content: Welcome to the forum.Also you could consider the Siglent SDS1072CML, it also is 1 Gsa/s and 2M memory.http://www.siglentamerica.com/pdxx.aspx?id=27&T=2&tid=1

author: Warhawk
author_rank: Frequent Contributor
timestamp: July 08, 2015, 09:40:41 am
content: Did you consider ds1054z from rigol ? Even though it has some quirks, it is probably the best bang per buck entry level scope at the market.I would stay away fromlowendTEK. It's a super old technology there (still the same like TDS210 ?). 2.5k memory is a bad joke these days and no surprise that Tektronix have had bad time recently...

author: John Coloccia
author_rank: Super Contributor
timestamp: July 08, 2015, 09:57:43 am
content: Quote from: Warhawk on July 08, 2015, 09:40:41 amI may have to agree with this. In the $500 price range (and the Rigol is actually less), it's very hard to beat the Rigol. It does have some quirks and bugs that have gotten blown way WAY out of proportion, but they're just quirks and bugs. I'm satisfied that I have way more than my money's worth with mine.The TBS line of TEK scopes is very seriously disappointing. I doubt you'll be happy with those. 2.5k points is a serious limitation. There's no reason to live with that these days.

author: wraper
author_rank: Unknown
timestamp: July 08, 2015, 10:10:24 am
content: Both scopes are a joke compared to what you can get for this money, especially TEK. 2 Mpts of memory in Instek is also not as good as you might think. It has serious limitations. IIRC in single shot mode you get only 4k of memory available. Those scopes also have damn slow waveform update rates.

author: sachin11
author_rank: Newbie
timestamp: July 14, 2015, 02:57:36 pm
content: Quote from: wraper on July 08, 2015, 10:10:24 amIs Keysight oscilloscope model No. DSO1072 any good compared to the above two, it has 16Kpts of memory depth.

author: Warhawk
author_rank: Frequent Contributor
timestamp: July 14, 2015, 04:22:57 pm
content: Quote from: sachin11 on July 14, 2015, 02:57:36 pmThis scope is probably re-branded Rigol or something similar. It has been very popular business model in electronics instruments industry recently... Which probably comes from the consumer market. You simply pay a premium price for a super low-end with the traditional brand sticker on.You've been already given the answer. In general stay away of low-end scopes from Tektronix, Agilent etc. They are re-branded, expansive, obviously targeted to universities and institutions with a government funding.If you really want a scope from some traditional producer, look at ebay and buy yourself old agilent/lecroy/tektronix/HP/Yokogawa with a major focus to sampling rate (>1GS and memory >1Mpts for hobby embedded and analog design). They all are reliable scopes, costly though.