Home Made Flyback Tester

By on November 18, 2008
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  1. admin

    November 8, 2010 at 3:23 am

    HI Paul,

    It is already listed in the above link in the comment.


  2. darcy

    November 13, 2010 at 6:50 pm

    ok thanks a lot

  3. ankur

    December 2, 2010 at 10:49 am

    the 4015 ic is not availble plz give me some other number

    i made this tester but when i on the tester the three led will glow without the lopt attached.

  4. admin

    December 3, 2010 at 11:17 am

    HI Ankur,

    Sorry i do not know other number because i do not design this circuit.


  5. samy reyes carganilla

    February 6, 2011 at 8:20 am

    Good day sir could you please send me the diagram and the parts specification of the flyback tester that you made. Thanks sir^_^

  6. admin

    February 6, 2011 at 9:29 am

    HI Samy,

    Sorry i do not own the schematic diagram.


  7. aurelio

    May 11, 2011 at 5:07 am

    Goodday Sir!

    Asking you favor to send me a copy of your flyback/ring tester.

    Thank you very much!

  8. tintu paul

    June 2, 2011 at 6:27 am

    Hello Mr. Yong,
    I want to make the FBT, but there is no details in the given link about ICa in the circuit diagram, also this ICa not given in the PCB design too.

  9. admin

    June 2, 2011 at 7:25 am

    Hi Tintu,

    It is all in the flipper link above.


  10. tod delacruz

    July 6, 2011 at 12:28 pm

    hi,i`m tod from philipines,i want to build a flyback tester illustrated here..can i have the schematic diagram of the said project?how about the components being used,is it available here in the philippines?i`ll be thankful if you could send me my request sir..thank you.

  11. admin

    July 7, 2011 at 3:37 am

    Hi Tod,

    The schematic link is in the above comment and the parts you can buy it easily from your local electronics shop.


  12. arnel polestico

    August 13, 2011 at 5:27 am

    there is an analog flyback tester?
    if there is can you give an example schematic plzzzzzz.

  13. admin

    August 13, 2011 at 8:07 am

    HI Arnel,

    Please check on the above comment link.


  14. lito mendoza

    August 20, 2011 at 12:55 am

    hi jestine,

    the mkt capacitor in this project is not available in the electronic market in my place. can i use a mylar capacitor as a replacement for the mkt capacitor? thanks...

  15. admin

    August 20, 2011 at 1:15 am

    Hi Lito,

    I have not try that but you can always try it out and hope it will work. If you got the result as expected then it can be used.


  16. lito mendoza

    September 20, 2011 at 9:18 pm

    hi Jestine,

    i just finished assembling the lopt/fbt tester of Mr. Bob Parker... i followed the instructions on the assembly manual of Dick Smith Electronics... initially when the tester is swithched on, the 1st LED (red) lits, but according to the instructions i have to short the 2 test leads in order for the LED to go off. is it normal for the 1st (red) LED to remain illuminated even without a load connected to it? thanks and have a good day!



  17. admin

    September 20, 2011 at 9:32 pm

    HI Lito,
    Yes the first LED must light up when the power is on.


  18. lito mendoza

    September 20, 2011 at 10:35 pm


    thanks for the reply... i tried testing the primary winding of a lopt/fbt aiwa tv (in-circuit), and all the LED's lighted... i used a mylar capacitor instead of the mkt cap which is in the original design because it's not available in the market; i also replaced the transistor bc328 with bc327 co'z it's not available. so far i'm trying to build a plastic case for it.

    i would also like to build the esr meter of Mr. Bob Parker but the problem is it uses a custom programmed microcontroller chip (z86e0412), is it possible to use a blank chip? is it possible to build this kit if it's using a programmable chip? thanks a lot

    best regards,


  19. admin

    September 21, 2011 at 7:11 am

    HI Lito,

    Blank chip will not make the meter to work. You need a programmed chip.


  20. firoz alam

    February 16, 2012 at 1:14 pm

    i am leving in india ,i waant to chek lot/ flyback and many coil type item ,so give me solution, and how much does it cost me ,in indian rupees
    and how i can buy

  21. admin

    February 17, 2012 at 10:12 pm

    Hi Firoz,

    Try visit this link http://www.electronicrepairguide.com/blue-ring-tester.html

    you can go to google for currency converter and from there you will know the latest exchange rate.


  22. ronnie

    April 25, 2012 at 3:12 am

    hi sir jestine,,
    iam a jail officer in phil, since elementary, i love electronics, i have informal study but lack of experiences
    in repairing and troubleshooting, in fact i have so many pending tv and monitor for repair
    i want ur help please, i need a substitute for fet transistor to-220 package with part number k 0034.
    i hope you can help me.thanks

    • Jestine Yong

      April 25, 2012 at 10:08 pm

      Hi Ronnie,

      Could you double confirm again the FET part number. I've not seen any FET that starts with K0034. In which section of the monitor you found this FET?


  23. Mubashir

    December 7, 2012 at 4:29 am

    Dear Jestine, Good Day
    I have also build Flyback tester which is on Humphrey website. That is gread gadget. Soon I shall send you the picture of Flyback Tester.
    Karachi, Pakistan


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