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jeever 13/04/2023
We have a very mixed feeling about this device. It looks very nice, is affordable and, because of these features, is undoubtedly a nice little gadget that a lot of hobbyists will fall for. But...a technical evaluation does not take into account such external features, but must answer the question of whether the DSO-TC3 is a good usable measuring device. As for the function generator and oscilloscope functions, we are quite positive. Both functions work, within the limitations of such a simple and inexpensive device, excellently. As for the measurement functions, we have to be less positive. Both small capacitors and inductances are measured with large errors. The measured ESR values of electrolytics and series resistances of coils are also a joke. About measuring a DC voltage with a resolution of up to 1 mV with a meter with an internal resistance of 160 kΩ, we are clearly: nonsense!
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  • PC317 There is no connection between the "1mV resolution" and the "160kΩ internal resistance".

    Reply 07/06/2023
  • REXX5000 I found this very same problem with the DSO-TC2 version. it's the very same but without the function generator. it was totally useless. wrong readings on all components. just the DSO worked on it.

    Reply 11/08/2023
  • BG231117153 @PC317 Iunderstand there is. Such a low internal resistance can lower in circuit voltage readings considerably thus the 1mv resolusion may become meaningless. We are not always measure power supply output voltages! A 10M/ instrument would do better.

    Reply 09/11/2023
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