I have a great condition Quantasylum QA400 and Lenovo S10e netbook. This is a turn-key setup, ready to test as long as you have BNC input cables (the BNC cables in the pictures are not included). This does include the USB connection cable shown and several different versions of QA400 software as well as the electronic users manual. The laptop was recently fully reloaded with the original Win XP SP3 and the last version of QA software V1.23 is loaded. Other older versions are included in a QA400 folder along with the manual. The little Lenovo netbook has plenty of power for this task and is quite snappy for what it is. I used it as a stand alone test system, no network connections. You could set it up to attach to your wifi network but realize that you're pretty vulnerable if you start perusing the web with it. The netbook is small enough that this makes a good portable system. You do have to drag the Quantasylum control panel on the right side of the screen up/down with the mouse because the screen doesn't have enough vertical resolution for it to all fit. However you can start/stop the generator with the spacebar so its not necessary to always drag the control panel up or down.
A couple of things about the Lenovo. The CMOS battery is kaput, so it loses time/date if you leave it unplugged from the AC adapter for several weeks when you first start the laptop. You can leave it unplugged for days and this is not an issue, but for long periods it'll beep at you when you first start it. This is more of a nuisance than anything. I typically do not even set the time because I'm only using this thing as a test system. Also the main laptop battery is not holding enough of a charge to keep the laptop running for more than 30sec, so you'll have to run it on the supplied AC adapter.
See the pictures of the QA running in loopback mode, so you can see the 1kHz performance of it.
Put a DIY attenuator in front of this setup and you have a nice system for testing a wide variety of gear.
NOTE, The BNC cables shown in the pictures are NOT included with this sale only the Lenovo + AC Adapter, QA400 & USB cable is included.
Price $175 + shipping. I accept paypal (you must pay 3% fee or send as a friend), or Zelle. Contact me via PM with your address for a quote on shipping.
A couple of things about the Lenovo. The CMOS battery is kaput, so it loses time/date if you leave it unplugged from the AC adapter for several weeks when you first start the laptop. You can leave it unplugged for days and this is not an issue, but for long periods it'll beep at you when you first start it. This is more of a nuisance than anything. I typically do not even set the time because I'm only using this thing as a test system. Also the main laptop battery is not holding enough of a charge to keep the laptop running for more than 30sec, so you'll have to run it on the supplied AC adapter.
See the pictures of the QA running in loopback mode, so you can see the 1kHz performance of it.
Put a DIY attenuator in front of this setup and you have a nice system for testing a wide variety of gear.
NOTE, The BNC cables shown in the pictures are NOT included with this sale only the Lenovo + AC Adapter, QA400 & USB cable is included.
Price $175 + shipping. I accept paypal (you must pay 3% fee or send as a friend), or Zelle. Contact me via PM with your address for a quote on shipping.
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$110 + shipping for the QA400 without the laptop. However I have a feeling that international shipping will be prohibitively expensive for a package. I checked USPS website and they aren't listing Italy as eligible for International first class packages. I can check other services but UPS and Fedex will be costly.
The price of qa 400 is fine for me. It remains to understand if the shipping is not too expensive.