Luckily, I was able to reattach it without having to buy another one, but even that was a pain because the solder ran inside the connector such that I couldn't insert the plug any more! I was able to fix it by draining the extra solder out.Ģ) The Xprotolab's screen is very, very small. (I went DIY because I am already over-budget on my U87 builds, but I would not do it a second time.) I didn't use enough solder on the microUSB shell and ended up breaking it off. Soldering SMT was a pain, especially the microUSB connector. If I blew something up, it would be the cheap Xprotolab, not my laptop.ġ) DIY on the Xprotolab or Xminilab is not for the faint of heart. It also includes a free open source software interface (Win/Mac/LINUX) that works if the oscilloscope is attached to a computer via microUSB cable-I used this for my U87i JFET biasing. ![]() This came in really handy during the biasing (explained below in the biasing setup procedure). I have no affiliation with this company-just a happy customer.Ī nice feature is that it has a built-in waveform generator on separate pin-outs. It's called the Xprotolab (tiny) or XMinilab (slightly larger). And I didn't want to mess around with software oscilloscopes for smartphones or computers due to the rare possibility of damaging the expensive device, so I went searching for low-cost, tiny oscilloscopes and found one that comes in DIY kit form. I sold off my giant oscilloscope a long while ago since I used it maybe once per 3 years.
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