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mxim2 29/12/2016
From an educational point of view, this is a good kit. This new kit is a bit more compact than the DSO138. Ultimately, it has similar limitations - this is more like a different form factor than a proper upgrade. Anyway, it has a very reasonably frequency range for its price point. I uploaded some pictures during my assembly. Many parts, such as the rotary encoder, are marked on the pcb silkscreen - this helps with the correct orientation of the components. For me, It the assembly took 2-3 hours. The hardest part was finding the correct resistor values - soldering marked SMD resistors, such as 0805s, would be easier and faster. I think the pin headers have a pin pitch of 2 mm - everything is a bit smaller in comparison to a regular protoboard, which makes soldering a bit more challenging. The current firmware seems to have a few issues. there are a few threads in the official jye tech forum (jyetech.com/forum) regarding calibration issues, I hope these will be corrected soon. quote: "We can confirm that the 0.1V test signal contains a +3.3V offset due to a bug in firmware. This will be corrected in the up coming firmware release. For the time being please use AC coupling for the adjustment of C3. We are sorry for the mistake."
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