Oscilloscope purchase - Page 1
Forum section: electronics / general

author: Pexy13
author_rank: Regular Contributor
timestamp: February 04, 2019, 08:03:05 pm
content: Greetings!I am planing to buy my first oscilloscope.I would like a solid "beginer" analog one with at least 2ch and 20MHz.Is anyone of you selling one that fits descrption or has a site where i could search for one in Europe?Also if anyone of you is willing to look trough oscilloscopes that can be found on my countrys online marketplace i would be gratefull. (https://www.njuskalo.hr/?ctl=search_ads&keywords=osciloskop)My budget is around 200EUR.Thanks for the help.

author: PA0PBZ
author_rank: Super Contributor
timestamp: February 04, 2019, 08:14:25 pm
content: You can't go wrong with one of the Hamegs on that list but prices seem a bit high. I wouldn't pay more than 50-75 euro for a dual channel 20 Mhz scope, and they list for about 200 euro. Did you check EBay?

author: Mortymore
author_rank: Frequent Contributor
timestamp: February 04, 2019, 08:24:47 pm
content: Check this thread:https://www.eevblog.com/forum/buysellwanted/fs-used-test-equipment-scraprepairs-rigol-agilent-tektronix-etc/msg2124838/#msg2124838This might be interesting: Tektronix - 2225 50 MHz Oscilloscope 1 £100.00Talk with the seller, particularly about shipping costs.Don't forget what he said: "If you find any of the items that we have below on the internet for a cheaper price, send us a link and we will try and beat it."Good luck

author: Pexy13
author_rank: Regular Contributor
timestamp: February 04, 2019, 09:52:52 pm
content: Quote from: PA0PBZ on February 04, 2019, 08:14:25 pmThat's what i thought, a solid choices but for too much money. I checked on Ebay and the prices start to rise fairly quickly because of the shipping.I'll continue my search until i find one that ticks all the boxesThanks

author: Pexy13
author_rank: Regular Contributor
timestamp: February 04, 2019, 09:54:59 pm
content: Quote from: Mortymore on February 04, 2019, 08:24:47 pmI'll check it out and exchange a few messages with them for sure.Thanks

author: tggzzz
author_rank: Super Contributor
timestamp: February 04, 2019, 10:19:54 pm
content: You will find some people say you are stupid if you don't buy a modern DSO.You will find some people say an old analogue scope is sufficient.Both are correct, and both are wrongYou give a technical spec, but you don't specify what you are trying to observe and understand. In general it is good to tell us your problem/goal, as well your solution. In most walks of life, technical or non-technical, if we know the reason for the question you will probably get a better answer. Either the answer will be more pertinent to your needs, or perhaps it can suggest a better alternative that you haven’t even considered. Don’t ask “Can you give me a lift into town?” Do ask “Can you give me a lift into town, so I can replace my broken frobnitz?”. The answer might be “There’s a spare frobnitz in the attic”, thus saving time, money, the environment – as well as making some space in the attic.If you do buy an old analogue scope (and there can be good reasons for that), make very sure it is fully working. Repairing old scopes can be fun, but is not something a beginner should attempt.Whatever you buy, don't forget the cost of probes, and understand how to use probes safely and effectively. A suitable starting point is the references inhttps://entertaininghacks.wordpress.com/library-2/scope-probe-reference-material/

author: Pexy13
author_rank: Regular Contributor
timestamp: February 04, 2019, 10:39:59 pm
content: Quote from: tggzzz on February 04, 2019, 10:19:54 pmThe best words I can find to describe myself and what I do is a passionate homeshop DIY/maker. This is supose to be something like a jack of all traits and master of none type of an oscilloscope. One day I'll maybe be looking at a DC ripples on a homemade power supply and the next a stages of amplification of an amplifier and who knows for what else. I wish I could explain specific needs for one but i don't have them but it would be sure nice to have one.Thanks.

author: tggzzz
author_rank: Super Contributor
timestamp: February 04, 2019, 10:50:27 pm
content: Quote from: Pexy13 on February 04, 2019, 10:39:59 pmThat's fair enough:; what you aren't going to do is as important as what you are going to do.In this case you have omitted digital logic , and decoding protocols such as those used between processors and peripherals, and RF.For "audio" and "mechatronics" class uses, your spec should be fine.There is one area in which DSOs excel: capturing a single shot event that you cannot cause to be repetitive. If your signals are steady state and/or your implementation strategy enables you to have repetitive signals, then an old working analogue scope is likely to be sufficient - and much cheaper than a new CEO.Don't forget to leave money available for other equipment you need, e.g. Sig gen.If you can get the students discount, consider the digilent analogue discovery.

author: Pexy13
author_rank: Regular Contributor
timestamp: February 05, 2019, 12:29:44 am
content: Quote from: tggzzz on February 04, 2019, 10:50:27 pmYou described it pretty much. Yes i left some money on the side for other equipment and thanks for the digilent option,although I don't think it's right for me but i'll keep it in mind.Thanks