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  1. caps

    Smart LCR tweezers LCR Pro1-Russian RLC tweezers HB-14

    Happy New Year, everyone! I wish you all new successes in electronics.
  2. caps

    Smart LCR tweezers LCR Pro1-Russian RLC tweezers HB-14

    It needs to be constantly calibrated like a simple ESR tester that has a constant zero drift. It is unable to measure low ESR values due to its poor software implementation, especially when it comes to ceramic capacitors. The LCR Pro1 tweezers do not have such problems.
  3. caps

    Smart LCR tweezers LCR Pro1-Russian RLC tweezers HB-14

    It happens in different ways, it all depends on the circuit design. Here is another measurement result: Ceramic capacitor ESR = 0.000 Ohm. Complete nonsense.
  4. caps

    Smart LCR tweezers LCR Pro1-Russian RLC tweezers HB-14

    What does an instant test mean?
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    Smart LCR tweezers LCR Pro1-Russian RLC tweezers HB-14

    We see a cheap material used in electronics for boards. Poorly finished edges. This is always the case when working with a hand file. The contact points are tinned with solder. Over time, the brass plate and solder corrode. This can be clearly seen in the photo.
  6. caps

    Smart LCR tweezers LCR Pro1-Russian RLC tweezers HB-14

    The measuring part of the tweezers consists of two fiberglass boards and bolted brass plates. Such a terrible design solution requires constant calibrations in order to somehow keep the tweezers in working order. The same can be said about the display. Archaic in size and weight, apparently...
  7. caps

    Smart LCR tweezers LCR Pro1-Russian RLC tweezers HB-14

    The HB-14 used the cheapest microcontroller with limited capabilities. The developers have solved all the negative aspects at the expense of the poor controller, since its memory was not enough for everyone. The PR people of this office did their best to embellish this toy as best they could...
  8. caps

    Smart LCR tweezers LCR Pro1-Russian RLC tweezers HB-14

    Once upon a time, this toy had a maximum frequency of 10 kHz. The manufacturer naturally did not have enough brains to make 100 kHz right away. In fact, measuring at this frequency is associated with certain difficulties. But the Canadian engineers were able to solve them immediately. Perfectly...
  9. caps

    Smart LCR tweezers LCR Pro1-Russian RLC tweezers HB-14

    HB-14 is a primitive home-made product that has not reached a decent level of measurement quality. An unfinished program, a lack of knowledge and practical experience among developers, the use of cheap Chinese components, a terrible assembly with poor-quality soldering and unwashed flux...
  10. caps

    Smart LCR tweezers LCR Pro1-Russian RLC tweezers HB-14

    In my opinion, everyone understands this. I can only say that the HB-14 tweezers ceased to exist for a number of reasons that I described earlier. That's good. It was a toy for schoolchildren. The next clone, HB-15, costs twice as much. But in fact it is the same raw product. All this is clearly...
  11. caps

    Smart LCR tweezers LCR Pro1-Russian RLC tweezers HB-14

    A logical question arises. Why sell a raw product to people? The measurement results are terrible, the numbers on the display are unstable, the display spontaneously flips, the contact is not stable, constant calibrations are needed.
  12. caps

    Smart LCR tweezers LCR Pro1-Russian RLC tweezers HB-14

    16.10-18.50 The measurement of 1500μF capacitors. Complete nonsense.
  13. caps

    Why is it so hard to find ceramic capacitor kits that have a 3.3pF in it?

    The quality of ceramic capacitors depends on the type of dielectric. https://www.electronics-notes.com/articles/electronic_components/capacitors/ceramic-dielectric-types-c0g-x7r-z5u-y5v.php
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    capacitor ESR table - different values from different manufacturers?

    Hello, Routine. :)
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    capacitor ESR table - different values from different manufacturers?

    No one knows the clearance distance.
  16. caps

    ESR Meter purchase recommendations?

    You may be interested in cheap tweezers, ESR meter. In addition to ESR, you will have the opportunity to check other parameters of capacitors at different frequencies. Mastech MS8911. https://www.electronicspoint.com/forums/threads/mastech-ms8911-smart-smd-tester-r-l-c.290953/
  17. caps

    Smart LCR tweezers LCR Pro1-Russian RLC tweezers HB-14

    Two electrolytic capacitors connected in parallel. A good capacitor and a bad capacitor. 5.00-5.37. Complete nonsense.
  18. caps

    Smart LCR tweezers LCR Pro1-Russian RLC tweezers HB-14

    Canadian tweezers LCR Pro1 will always be correctly measured in the most difficult situations of in-circuit measurements. Resistor 0.005 Ohm.
  19. caps

    Smart LCR tweezers LCR Pro1-Russian RLC tweezers HB-14

    The left side of the circuit. There should be no problem measuring the capacitance of a film capacitor. Capacitance of varistor S14K250 on datasheet-350pF.
  20. caps

    Smart LCR tweezers LCR Pro1-Russian RLC tweezers HB-14

    The parallel connection of capacitors is a separate case of in-circuit measurements. It can be considered separately. I meant the influence of other components on the reliable measurement of capacitor parameters, if any. And give specific examples of such situations.
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