All posts by Jestine Yong

• About Blue ESR Meter Test Probes

  This morning a local buyer of the Blue ESR meter came to my office and told me that he had a problem with the Blue ESR meter. He bought the tester not long ago but in the...

  • Posted October 9, 2008
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• Electromagnetic Field Tester (EMF Tester)

  Have you use this kind of test equipment before? It will not help in the electronic repair, this EMF tester is specifically designed to determine the magnitude of electromagnetic field radiation generated by power lines, computer’s Monitor,...

  • Posted October 9, 2008
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• Buying Used Technical Books?

  One of my student recommended me to check out the website ABE BOOKS dot com where used books were sold. He already bought couples of repairing books and found that the price was very cheap. The only...

  • Posted October 8, 2008
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• How To Make LED That Draws From AC Main Line

    A subscriber emailed me with with this question: “How to make an mains indicator with a LED.In my soldering iron the neon or any light and to replace it I like a LED instead of that...

  • Posted October 8, 2008
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• Salvaging The Hard Disk Parts?

    Here is a subscriber that shared with me about the usage of some of the parts in hard disk and here is the email: “Hi Jestine, Your defective hard drives have discs that are coated with...

  • Posted October 7, 2008
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• Abou The Zener Diode Tester

  Got question regarding the zener diode tester from a blog reader/ERG Member: “Jestine: It’s always a pleasure to read your monthly newsletter and blog. Thanks for bringing the human side to the repair business! I have a...

  • Posted October 7, 2008
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• About Capacitor Coding

    I got an email that asked what is the meaning of the first two code of a polyester (mlyar) capacitor. Here is the question: “Hi Jestine! Hope your doing fine. I just want to ask these...

  • Posted October 7, 2008
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• Electronic Supplier From The UK

  Here is another electronic supplier from the UK and feel free to browse through the website and if possible bookmark it for future reference. Click on the photo to visit the website: Likes(0)Dislikes(0)

  • Posted October 6, 2008
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