Varactor Diode Tester

If you would like to know what kind of tester that can test a varactor diode then please click on the photo. For more information what is a varactor diode please click on THIS link.

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10 Comments

1. 

   Manu

   December 22, 2010 at 2:31 am

   sir,

   i am not comment about this article. sir i have a question , i don't know where to post this question so that i ask this question here..
   HOW TO CHECK A POWER TRANSISTOR?
   example-MJE 2955T
   is it entirely different from checking a signal transistor?

   plzz give me answer...

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2. 

   Manu

   December 22, 2010 at 2:37 am

   my name is manu
   sir , please tell me how to became a member in your blog? and where can i post my questions?

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3. 

   admin

   December 22, 2010 at 3:24 am

   HI Manu,

   There is no need to become member in my blog. You can post any electronic repair related question clicking on the comment link.

   Jestine

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4. 

   admin

   December 22, 2010 at 5:16 am

   HI Manu,

   Checking a signal transistor have similarity with power transistor except that if the power transistor have built in diode then the reading is totally different from checking a signal transistor. On how to check a power transistor, i have documented it into my ebook Testing Electronic Components.

   Jestine

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5. 

   Manu

   December 22, 2010 at 5:37 am

   Thank you sir , how much is the cost of your ebook or it is free downloadable.

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6. 

   Gerald Musy

   December 22, 2010 at 6:20 am

   Hi Jestine,

   I hope you are well. Once I came across the following paper:

   http://mysite.du.edu/~etuttle/electron/elect40.htm

   Maybe this can be useful for someone.

   Cheers,
   Gerald Musy

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7. 

   admin

   December 23, 2010 at 7:33 am

   HI Manu,

   The price is USD37.00 and you can visit this website for more information http://www.testingelectroniccomponents.com

   Jestine

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8. 

   admin

   December 23, 2010 at 7:37 am

   HI GERALD,

   Thanks for the link!

   Jestine

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9. 

   kofi

   December 30, 2010 at 6:16 pm

   yong lcd mnintor 19 inch when u put it on it display 30seconds then off u switch it on again it display and off friends say it is the convertor pls. what is a convertor and how many convertors do we have in lcd monitor espercialy dell

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10. 

    admin

    December 30, 2010 at 10:35 pm

    Hi Kofi,

    Actually it should be the inverter and not converter. If one of the backlight have problem the monitor also could shutdown. Check for bad filter cap at the secondary side too.

    Jestine

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