Jerry, Have you bought from alibaba before? I have found a scope that I want to buy from there but am a bit nervous since I have heard both great and terrible things about buying through them.
Here is the scope I am looking at buying if anyone has input on why I should or shouldn't buy it, I'd like to hear it http://www.aliexpress.com/item/-/1928114166.html Jason On Fri, Aug 1, 2014 at 4:12 PM, Jerry Biehler <[email protected]> wrote: > For quantities check alibaba. > > -Jerry > > On Aug 1, 2014, at 3:41 PM, Sova <[email protected]> wrote: > > Yeah, Paul linked to a signal generator on Ebay for $70 with freq. > counter. I just looked to see if you could buy them in 10 packs for > cheaper but it doesn’t look like they are any cheaper than just getting > singles off Ebay. > > > > > http://www.ebay.com/itm/10MHz-DDS-Function-Signal-Generator-Carrier-Debugging-Source-Frequency-Counter-/281310662043?pt=LH_DefaultDomain_0&hash=item417f6c0d9b > > > > Sova > > > > *From:* [email protected] [ > mailto:[email protected] > <[email protected]>] *On Behalf Of *Nathan McCorkle > *Sent:* Friday, August 1, 2014 3:23 PM > *To:* A discussion list for dorkbot-pdx (portland, or) > *Subject:* Re: [dorkbotpdx-blabber] Looking for input on oscilloscope > > > > What eBay item for $70? A signal generator? > > On Aug 1, 2014 2:43 PM, "Sova" <[email protected]> wrote: > > I sort of came to the same conclusion that having two separate tools would > probably be more convenient than one box. Like you said, if it were $100 > then that would make sense but there is other options for $250-$350 range. > That cheap $70 unit on EBay is interesting. I don’t know I need a > generator at this moment but that seems like it might be worth > considering. The frequency counter might be nice but I have one in my DMM > right now. If there was interest we might be able to do a group buy of > them direct from China and get the price down to $50 a piece even. > > > > Sova > > > > *From:* [email protected] [mailto: > [email protected]] *On Behalf Of *Paul Stoffregen > *Sent:* Friday, August 1, 2014 5:25 AM > *To:* [email protected] > *Subject:* Re: [dorkbotpdx-blabber] Looking for input on oscilloscope > > > > > > Also I noticed that the Rigol model he mentioned comes with an optional > function generator for $250 more [Model DS1074Z-S] which might save money > over buying one separately. > > > Something to consider with built-in extras is the shared user interface. > On a scope, you'll access this stuff using the menus, which are already > packed with tons of scope features. Budget scopes have lots of crafty ways > to share knobs, like only 1 set of vertical controls among all channels & > math. It usually works pretty well, with only minor inconvenience for > saving a lot of $$$, but those menus do tend to get pretty crowded. > > With a dedicated function gen, you get a big knob to vary the amplitude > and/or frequency, buttons to change waveform and settings, and usually a > display that shows what it's doing. The controls are optimized for the > function generator features, which makes using it quite a bit easier and > more natural than a function generator shoehorned into the scope's menu > system. > > If it were under $100, of course the decision would be easy. There are > many dedicated DDS function generators in the $250 to $350 range, and a lot > of used gear well under $250. If you only need basic signals at modest > frequency and you don't need the frequency stability of DDS, there are a > lot of old/used but good quality analog function generators under $70. > > There's also some really cheap DDS stuff out there now, which might > actually work? If anyone actually takes a chance buying these, or already > has one, I'd be really curious to play with it sometime at a Monday meetup. > > > http://www.ebay.com/itm/10MHz-DDS-Function-Signal-Generator-Carrier-Debugging-Source-Frequency-Counter-/281310662043?pt=LH_DefaultDomain_0&hash=item417f6c0d9b > > > http://www.ebay.com/itm/2MHz-Dual-Channel-DDS-Function-Signal-Generator-Sine-Square-Wave-Sweep-Counter-/111407197529?pt=LH_DefaultDomain_0&hash=item19f062ed59 > > > http://www.ebay.com/itm/2MHz-DDS-Function-Signal-Generator-Frequency-Counter-Square-Wave-Sweep-BNC-TTL-/281295638078?pt=LH_DefaultDomain_0&hash=item417e86ce3e# > <http://www.ebay.com/itm/2MHz-DDS-Function-Signal-Generator-Frequency-Counter-Square-Wave-Sweep-BNC-TTL-/281295638078?pt=LH_DefaultDomain_0&hash=item417e86ce3e> > > > _______________________________________________ > dorkbotpdx-blabber mailing list > [email protected] > http://music.columbia.edu/mailman/listinfo/dorkbotpdx-blabber > > _______________________________________________ > dorkbotpdx-blabber mailing list > [email protected] > http://music.columbia.edu/mailman/listinfo/dorkbotpdx-blabber > > > _______________________________________________ > dorkbotpdx-blabber mailing list > [email protected] > http://music.columbia.edu/mailman/listinfo/dorkbotpdx-blabber >
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