Rigol oscilloscope prices have sky-rocketed!
in [Design]
|
Prev: How do you design these days?
Next: PSpice and LTSpice
From: Spehro Pefhany on 2 Jan 2010 16:41 On Sat, 2 Jan 2010 13:26:44 -0800 (PST), the renowned "miso(a)sushi.com" <miso(a)sushi.com> wrote: >On Jan 2, 7:08�am, Jan Panteltje <pNaonStpealm...(a)yahoo.com> wrote: >> On a sunny day (Fri, 1 Jan 2010 16:44:59 -0800 (PST)) it happened >> "m...(a)sushi.com" <m...(a)sushi.com> wrote in >> <13bba92c-7810-4018-8af9-62277a0aa...(a)m25g2000yqc.googlegroups.com>: >> >> >On Jan 1, 7:01�am, Jan Panteltje <pNaonStpealm...(a)yahoo.com> wrote: >> >> On a sunny day (Fri, 1 Jan 2010 05:57:24 -0800 (PST)) it happened >> >> "m...(a)sushi.com" <m...(a)sushi.com> wrote in >> >> <b1b6edcc-fbeb-439e-bd13-7a2f3b8f8...(a)a32g2000yqm.googlegroups.com>: >> >> >> >I was thinking of the Bitscope 100u, mostly because it is isolated >> >> >from the PC (less hash) and they support Linux. I have a great >> >> >distrust of Windows and USB due to driver issues. >> >> >> That seems to be only 40 meg samples / second. >> >> >Yes, not a great scope, but I have real bench equipment. I have >> >nothing 12V portable. The Rigol doesn't buy me anything that I can't >> >get with a used Tek DSO. �The 40MHz limit would be fine for my >> >portable purposes. >> >> A 12V to 240V converter that easily powers a scope plus some other stuff, >> with a plug that fits the cigatette lighter is only 35 Euro or less here. >> �http://www.gelders.org/start.php?voedingen_en_transformatoren_spannin... > >Those "modified sine" inverters are death to electronics, and >certainly to measurements since they radiate RF hash. A true sine is >substantially more money. Have you actually had them damage anything? I've run chargers for multiple laptops, cellphones, iPods, etc. as well as solder stations and other stuff from them without problems, though I do worry. Both the peak and RMS volages are close enough that it shouldn't bother electronics (aside from the potential EMC issue). Best regards, Spehro Pefhany -- "it's the network..." "The Journey is the reward" speff(a)interlog.com Info for manufacturers: http://www.trexon.com Embedded software/hardware/analog Info for designers: http://www.speff.com
From: David L. Jones on 2 Jan 2010 17:33 miso(a)sushi.com wrote: > On Jan 2, 8:07 am, John Devereux <j...(a)devereux.me.uk> wrote: >> "m...(a)sushi.com" <m...(a)sushi.com> writes: >>> On Jan 1, 9:33 pm, "David L. Jones" <altz...(a)gmail.com> wrote: >>>> Greegor wrote: >>>>> David: >>>>> You said the seller wrote to somebody: >>>>>> <quote> >>>>>> "Hello, Please don't worry, the problem is, an another seller has >>>>>> complaint by ebay that i'm selling the rigol oscilloscopes at a >>>>>> dumping price" >>>>>> He then offered to complete the original low price transaction >>>>>> outside of ebay. >> >>>>> Has it occurred to you that this is exactly the kind of story >>>>> that an ejected SCAMMER would tell to rope in a few >>>>> more suckers to send them money outside >>>>> of the aggressive protection of eBay/Paypal? >> >>>> Could be, but not my problem, I'm just passing on what was said. >>>> Buyer-beware, as always. >>>> If you are worried then buy from DealExtreme or some other known >>>> non-ebay seller. >>>> Remember, this is not a one-off seller thing, dozens and dozens of >>>> (legitimate) ebay sellers of this scope have suddenly dissapeared. >>>> There is somethign else going on. I have not heard of a single >>>> case of anyone being scammed on a Rigol scope, and I can tell you >>>> I get a lot of feedback on this issue though my blog. Doesn't mean >>>> it's safe of course. >> >>>>> How would you know if the seller is a SCAMMER or not? >> >>>> Err, not too hard. If the seller has a rep of selling the same gear >>>> previously (ebay and other forum history can show that), and most >>>> of the sellers have suddenly disappeared (presumably) due to ebay >>>> pulling their auctions for some competive(?) reason, then it's >>>> more probable than not the seller is not a scammer, they are just >>>> caught up in whatever is happening >>>> here. >> >>>> Dave. >> >>>> -- >>>> --------------------------------------------- >>>> Check out my Electronics Engineering Video Blog & >>>> Podcast:http://www.eevblog.com >> >>> Ebay exists to collect fees. They don't care who is selling the item >>> as long as they get their cut. I suspect Rigol stopped supplying >>> these dealers. They have a right not to sell to any dealer they >>> don't like. >> >> Manufacturers *are* able to excert pressure on them somehow. A >> friend of mine came home from the USA with 3 new PS3's just after >> they were released there. He put them up on ebay, but the listing >> was removed since it was "illegal" to sell them. >> >> -- >> >> John Devereux > > I'd like to see the paper trail on this. I think there is more to the > story. I see stuff sold on ebay that I know has serious security > concerns regarding export. [There is a New Mexico vendor that is > pulling gear out of Los Alamos.] I see copyrighted literature put on > CDs and sold, such as those electronics manuals that the manufacturer > provides for free but arseholes put on CD to sell to stupid customers. > I just don't believe ebay polices their sales to the degree you are > inferring. Ebay do nothing until someone complains. Then the bigger you are, the more your complaint is taken seriously. Ebay like to do stuff that shows the industries and government that they care about the law and that they are in control, when in fact they don't give a toss because they make money on everything of course. But they know they have to be seen to be doing something at least some of the time. Dave. -- --------------------------------------------- Check out my Electronics Engineering Video Blog & Podcast: http://www.eevblog.com
From: Mike Harrison on 2 Jan 2010 17:40 On Sat, 2 Jan 2010 13:26:44 -0800 (PST), "miso(a)sushi.com" <miso(a)sushi.com> wrote: >On Jan 2, 7:08�am, Jan Panteltje <pNaonStpealm...(a)yahoo.com> wrote: >> On a sunny day (Fri, 1 Jan 2010 16:44:59 -0800 (PST)) it happened >> "m...(a)sushi.com" <m...(a)sushi.com> wrote in >> <13bba92c-7810-4018-8af9-62277a0aa...(a)m25g2000yqc.googlegroups.com>: >> >> >On Jan 1, 7:01�am, Jan Panteltje <pNaonStpealm...(a)yahoo.com> wrote: >> >> On a sunny day (Fri, 1 Jan 2010 05:57:24 -0800 (PST)) it happened >> >> "m...(a)sushi.com" <m...(a)sushi.com> wrote in >> >> <b1b6edcc-fbeb-439e-bd13-7a2f3b8f8...(a)a32g2000yqm.googlegroups.com>: >> >> >> >I was thinking of the Bitscope 100u, mostly because it is isolated >> >> >from the PC (less hash) and they support Linux. I have a great >> >> >distrust of Windows and USB due to driver issues. >> >> >> That seems to be only 40 meg samples / second. >> >> >Yes, not a great scope, but I have real bench equipment. I have >> >nothing 12V portable. The Rigol doesn't buy me anything that I can't >> >get with a used Tek DSO. �The 40MHz limit would be fine for my >> >portable purposes. >> >> A 12V to 240V converter that easily powers a scope plus some other stuff, >> with a plug that fits the cigatette lighter is only 35 Euro or less here. >> �http://www.gelders.org/start.php?voedingen_en_transformatoren_spannin... > >Those "modified sine" inverters are death to electronics, and >certainly to measurements since they radiate RF hash. A true sine is >substantially more money. Almost everything these days has a SMPS, and so will tolerate anything from DC to any sort of waveform that rectifies to DC in the right range. "True sine' would be a waste of money.
From: Spehro Pefhany on 2 Jan 2010 18:51 On Sat, 2 Jan 2010 13:34:39 -0800 (PST), the renowned "miso(a)sushi.com" <miso(a)sushi.com> wrote: >On Jan 2, 8:07�am, John Devereux <j...(a)devereux.me.uk> wrote: >> "m...(a)sushi.com" <m...(a)sushi.com> writes: >> > On Jan 1, 9:33�pm, "David L. Jones" <altz...(a)gmail.com> wrote: >> >> Greegor wrote: >> >> > David: >> >> > You said the seller wrote to somebody: >> >> >> <quote> >> >> >> "Hello, Please don't worry, the problem is, an another seller has >> >> >> complaint by ebay that i'm selling the rigol oscilloscopes at a >> >> >> dumping price" >> >> >> He then offered to complete the original low price transaction >> >> >> outside of ebay. >> >> >> > Has it occurred to you that this is exactly the kind of story >> >> > that an ejected SCAMMER would tell to rope in a few >> >> > more suckers to send them money outside >> >> > of the aggressive protection of eBay/Paypal? >> >> >> Could be, but not my problem, I'm just passing on what was said. >> >> Buyer-beware, as always. >> >> If you are worried then buy from DealExtreme or some other known non-ebay >> >> seller. >> >> Remember, this is not a one-off seller thing, dozens and dozens of >> >> (legitimate) ebay sellers of this scope have suddenly dissapeared. There is >> >> somethign else going on. I have not heard of a single case of anyone being >> >> scammed on a Rigol scope, and I can tell you I get a lot of feedback on this >> >> issue though my blog. Doesn't mean it's safe of course. >> >> >> > How would you know if the seller is a SCAMMER or not? >> >> >> Err, not too hard. If the seller has a rep of selling the same gear >> >> previously (ebay and other forum history can show that), and most of the >> >> sellers have suddenly disappeared (presumably) due to ebay pulling their >> >> auctions for some competive(?) reason, then it's more probable than not the >> >> seller is not a scammer, they are just caught up in whatever is happening >> >> here. >> >> >> Dave. >> >> >> -- >> >> --------------------------------------------- >> >> Check out my Electronics Engineering Video Blog & Podcast:http://www.eevblog.com >> >> > Ebay exists to collect fees. They don't care who is selling the item >> > as long as they get their cut. I suspect Rigol stopped supplying these >> > dealers. They have a right not to sell to any dealer they don't like. >> >> Manufacturers *are* able to excert pressure on them somehow. A friend of >> mine came home from the USA with 3 new PS3's just after they were >> released there. He put them up on ebay, but the listing was removed >> since it was "illegal" to sell them. >> >> -- >> >> John Devereux > >I'd like to see the paper trail on this. I think there is more to the >story. I see stuff sold on ebay that I know has serious security >concerns regarding export. [There is a New Mexico vendor that is >pulling gear out of Los Alamos.] I see copyrighted literature put on >CDs and sold, such as those electronics manuals that the manufacturer >provides for free but arseholes put on CD to sell to stupid customers. >I just don't believe ebay polices their sales to the degree you are >inferring. Probably Sony told ebay the goods are counterfeit. eBay enforcement is based on complaints.. which could come from competitors, or the mfrs like Sony. You can bet they take any complaint from companies like Sony and Disney very seriously. Best regards, Spehro Pefhany -- "it's the network..." "The Journey is the reward" speff(a)interlog.com Info for manufacturers: http://www.trexon.com Embedded software/hardware/analog Info for designers: http://www.speff.com
From: Jon Kirwan on 2 Jan 2010 19:32
On Sun, 3 Jan 2010 09:33:06 +1100, "David L. Jones" <altzone(a)gmail.com> wrote: >miso(a)sushi.com wrote: >> On Jan 2, 8:07 am, John Devereux <j...(a)devereux.me.uk> wrote: >>> "m...(a)sushi.com" <m...(a)sushi.com> writes: >>>> On Jan 1, 9:33 pm, "David L. Jones" <altz...(a)gmail.com> wrote: >>>>> Greegor wrote: >>>>>> David: >>>>>> You said the seller wrote to somebody: >>>>>>> <quote> >>>>>>> "Hello, Please don't worry, the problem is, an another seller has >>>>>>> complaint by ebay that i'm selling the rigol oscilloscopes at a >>>>>>> dumping price" >>>>>>> He then offered to complete the original low price transaction >>>>>>> outside of ebay. >>> >>>>>> Has it occurred to you that this is exactly the kind of story >>>>>> that an ejected SCAMMER would tell to rope in a few >>>>>> more suckers to send them money outside >>>>>> of the aggressive protection of eBay/Paypal? >>> >>>>> Could be, but not my problem, I'm just passing on what was said. >>>>> Buyer-beware, as always. >>>>> If you are worried then buy from DealExtreme or some other known >>>>> non-ebay seller. >>>>> Remember, this is not a one-off seller thing, dozens and dozens of >>>>> (legitimate) ebay sellers of this scope have suddenly dissapeared. >>>>> There is somethign else going on. I have not heard of a single >>>>> case of anyone being scammed on a Rigol scope, and I can tell you >>>>> I get a lot of feedback on this issue though my blog. Doesn't mean >>>>> it's safe of course. >>> >>>>>> How would you know if the seller is a SCAMMER or not? >>> >>>>> Err, not too hard. If the seller has a rep of selling the same gear >>>>> previously (ebay and other forum history can show that), and most >>>>> of the sellers have suddenly disappeared (presumably) due to ebay >>>>> pulling their auctions for some competive(?) reason, then it's >>>>> more probable than not the seller is not a scammer, they are just >>>>> caught up in whatever is happening >>>>> here. >>> >>>>> Dave. >>> >>>>> -- >>>>> --------------------------------------------- >>>>> Check out my Electronics Engineering Video Blog & >>>>> Podcast:http://www.eevblog.com >>> >>>> Ebay exists to collect fees. They don't care who is selling the item >>>> as long as they get their cut. I suspect Rigol stopped supplying >>>> these dealers. They have a right not to sell to any dealer they >>>> don't like. >>> >>> Manufacturers *are* able to excert pressure on them somehow. A >>> friend of mine came home from the USA with 3 new PS3's just after >>> they were released there. He put them up on ebay, but the listing >>> was removed since it was "illegal" to sell them. >>> >>> -- >>> >>> John Devereux >> >> I'd like to see the paper trail on this. I think there is more to the >> story. I see stuff sold on ebay that I know has serious security >> concerns regarding export. [There is a New Mexico vendor that is >> pulling gear out of Los Alamos.] I see copyrighted literature put on >> CDs and sold, such as those electronics manuals that the manufacturer >> provides for free but arseholes put on CD to sell to stupid customers. >> I just don't believe ebay polices their sales to the degree you are >> inferring. > >Ebay do nothing until someone complains. Then the bigger you are, the more >your complaint is taken seriously. >Ebay like to do stuff that shows the industries and government that they >care about the law and that they are in control, when in fact they don't >give a toss because they make money on everything of course. But they know >they have to be seen to be doing something at least some of the time. Sounds exactly like credit card companies. Jon |