All posts by Jestine Yong

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  About The Impedance Of Multimeters

  Ever wondered why when you measure the voltage of a particular circuit with your digital and analogue meter, the result that you got were different? The reason for it usually is due to the impedance of the...

  • Posted October 23, 2021
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  A Dead Cement Vibrator Machine Brought Back to Life

              A hardware store manager called me about a man who came to their shop to get a cement vibrator fixed but they do not do any kind of repair so they...

  • Posted October 23, 2021
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  A Working Welding Machine That Needed Some Tweaking Done. Model: Zika

                A Welding technician came to my shop; he said that he machine is vibrating when powered on and was wondering what the cause was. While the customer awaits, I powered...

  • Posted October 23, 2021
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  Completed Another Basic Electronics Repair Course

  Just completed another Basic Electronics Repair Course for 6 participants. For your info this was my first training class since my country were under lockdown early May this year. For more info about this training course, please...

  • Posted October 22, 2021
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  Examining And Testing A Small Universal FDC To USB Adapter

              A few months ago I bought a very small but almost complete 26 pins Floppy Disk to USB Controller interface (FDC to USB). It was originally designed to work with a...

  • Posted October 13, 2021
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  A Shorted Surround Sound Amplifier Repaired

  A friend of mine who is a repair technician contacted me about a surround sound amplifier that he encountered but he does not have any kind of repair experience in such devices. The technician went further in...

  • Posted October 13, 2021
  • 13
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  Insects/Mosquitoes E-killer Saved From Waste Dump

              This Hongjian mosquitoes killer was brought to me by a neighbour with complaint of not working. Few months ago, it was repaired changing LEDs only. Now back on my work bench....

  • Posted October 13, 2021
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  Obtaining EEprom Bios Firmware For Deadflashed LG GDR8163B DVD-ROM Drive

                    A few months ago my friend Marco brought me two LG GDR8163B DVD-ROM drives. One still working and the other one he had deadflashed over the Pata/IDE port...

  • Posted October 6, 2021
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