Basic Electronics

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  Etech Hot and Cold Water Dispenser Repaired

                The complaint of this Etech hot and...

  • Posted October 14, 2015
  • 12
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  Which Resistor to Use with this LED?

                  This is a very simple question,...

  • Posted October 9, 2015
  • 50
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  Tektronix 2440 Oscilloscope Repaired- Part 4

                Here are the previous article: https://www.jestineyong.com/tektronix-2440-oscilloscope-repair/ (Part 1)...

  • Posted October 9, 2015
  • 23
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  Earth Leaking Heating Element

                  Moving soon to a smaller apartment...

  • Posted June 20, 2015
  • 37
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  Playing with IC’s: Part 3

                      In Part 2- https://www.jestineyong.com/playing-with-ics-part-2/,...

  • Posted June 2, 2015
  • 38
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  Playing with IC’s: Part 2

                      In my previous article,...

  • Posted May 19, 2015
  • 57
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  Harmonics and Distortion

                  Foreword: As I enjoy every single...

  • Posted April 28, 2015
  • 17
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  Repair of Fuyuang 55V 250VA Li-ion charger

                      A not working (of...

  • Posted March 24, 2015
  • 23