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Flyback Tester
By Jestine Yong on November 14, 2010
Beh have completed building the Dick Smith Flyback Tester. The PCB board was beautifully made. He powered it with an external power supply and used a brighter LEDs as seen from the photos below. Well done Beh!
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beh
November 14, 2010 at 11:08 am
MR YONG
ANOTHER PROJECT FET TESTER WILL COME
AND THANK YOU SO MUCH
BEH
Waleed Rishmawi
November 14, 2010 at 1:14 pm
well Done. looks very nice. I really like the board design. Congratulations.
admin
November 15, 2010 at 5:21 am
HI Beh,
Can't wait to see the FET tester.
Jestine
beh
November 15, 2010 at 1:31 pm
DEAR JESTINE
i got a diagram from web to make this fet tester and i am work on that
i will tell you
beh
beh
November 15, 2010 at 1:32 pm
HELLO WALEED
thank you so much . i am happy you like this tester. make one
beh
Cuan
June 7, 2024 at 7:39 am
Hi Beh,
please can you send me the PC board positive for the Dick Smith LPOT tester ?
I would like to make the pcb as you have done
Kind regards
Cuan
beh
November 15, 2010 at 1:35 pm
DEAR JESTINE
if you want to see the diagram of fet tester please open below link:
http://www.circuit-finder.com/categories/tools-and-measuring/component-tester/190/mosfet-tester
rgrds
beh
admin
November 15, 2010 at 9:21 pm
HI Beh,
Thanks for the link. See good this tester can perform. Looking to see your review.
Jestine
Zed
November 15, 2010 at 10:05 pm
This is one of the circuit of fet tester that is truly working and very cheap. i made one and it is working. here is the link. http://www.freeinfosociety.com/electronics/schemview.php?id=2035
beh
November 15, 2010 at 11:28 pm
DEAR JESTINE
but also i have this question?
in this diagram 1 cap is installed with 2.2 microfarad . if this is electrolyte? need to show the polarities but does not give any info
if you can tell me about this. i tried to contact with designer of the diagram but no answer so far
beh
Zed
November 16, 2010 at 12:27 am
beh
how did you made a clean or better circuit design of this fbt circuit. did you use ironing the design in the pcb.thanks
admin
November 16, 2010 at 3:52 am
Hi beh,
Since it does not show the polarity then i believe it is a non polar cap.
Jestine
beh
November 16, 2010 at 4:33 am
DEAR ZED
thank you so much of your fet tester diagram is really easy to make this one and if you said is working good i will switch to this one
about PCB i have to tell you this is made by assistance of one of my friend and program of the computer that changes your simple diagram
to a PCB printable diagram and after that is easy i do not know the name of program but if you want i have one extra unused pcb one and i can send you
also i may ask Mr Yong to give you my e mail address
i have to talk to you
regrdes
beh
beh
November 16, 2010 at 4:37 am
DEARE MR YONG
i try with different parts still no good answer but i may change my project to diagram of Mr zed
would you please give my e mail address to Mr zed i have to talk to him
personaly
thanks and regards
beh
beh
November 16, 2010 at 4:54 am
DEAR ZED
the name of programs are ALTIUM or PROTEL and this is the program that
made this pcb
thank you
beh
beh
November 16, 2010 at 5:16 am
DEAR ZED
also please visit this link:
http://www.pad2pad.com/download/index.htm
beh
Zed
November 16, 2010 at 9:34 pm
beh
Thanks for the information of the software. My email ad is zed7344@yahoo.com or zed4473@gmail.com. I forgot to tell you and sir jestine that i've tried assembling that fet diagram that you refer a year ago and its not working. so i look for another diagram and i found what i refer to you and it's really working. i have post the picture in my blog.
http://fillwithgoodthings.blogspot.com/2010/09/simple-fetfield-effect-transistor.html
beh
November 17, 2010 at 6:15 am
also this link:
http://alternativeto.net/software/altium-designer/
beh
November 17, 2010 at 11:23 am
HI ZED
thank you so much of your constructive info. as you told the diagram
i was working on that is not working i try several time, but your diagram is much better actually i am finished this one and in much
simpler way. i do not use wire and clipper i just put two 8 pin socket
for testing the fets and as holder during the test period and for pcb board i us a project board . also for
switch i want to use small key pin fit with hole of the board and not wiring them all and just solder the switch as soon as
the tester complete i will send you a picture to see what i have done
also i sent you e mail i will be very thankful if you answer me
best regards
beh
Anthony Matobo
November 18, 2010 at 7:52 am
I have been reading about the repair tips coming from your websites.
Since then i have found them very very useful tips concerning repair of equipment and troubleshooting methods.
I would like to get a circuit diagram for the lopt/flyback transformer as it is one of the most difficult part to troubleshoot.
Bye
Anthony
admin
November 18, 2010 at 9:17 am
HI Anthony,
Here is the link:
http://www.flippers.com/pdfs/k7205.pdf
Jestine
beh
November 18, 2010 at 9:43 am
HI JESTINE
the fet tester with new diagram is almost is finished very soon i will send the picture s
rgrds
beh
Randy
November 19, 2010 at 7:23 am
Dear Mr. Jestine,
Good day sir, I also make this flyback tester and why is it that i check SMPT transformer only five led is ON, the SMPT transformer is working fine.
Reagrds,
Randy
admin
November 19, 2010 at 8:00 am
HI Randy,
It depends on the transformer winding. Some will have 4 LED while to some it can have 8 LED light up.
Jestine
Bernard
December 1, 2010 at 5:28 am
Hi Jestine,
Thanks Mr Beh for the project FET Tester, will go through the web and check it out.
EDGAR SERRANO SARIGAN
August 11, 2011 at 6:19 am
GOOD DAY,
HI MR YONG, HOW CAN I AVAIL THIS FLYBACK TESTER? OR THE WIRING DIAGRAM. CAN YOU HELP US?
THANKS A LOT,
EDGAR SERRANO SARIGAN
FROM THE PHILIPPINES
admin
August 11, 2011 at 10:03 am
HI Edgar,
Here is the link:
http://www.flippers.com/pdfs/k7205.pdf
Jestine
Tipu
August 14, 2011 at 12:29 am
Hi !
can you please give the pcb so that i can make it by the toner transfer method
thanks !
lito mendoza
August 14, 2011 at 7:29 pm
hi jestine,
just want to ask about the flyback tester of mr. dick smith... will this flyback tester be more accurate if i use a precision resistor of 1% tolerance than a 5% regular resistor? thanks
admin
August 15, 2011 at 5:05 am
HI Lito,
Good question- using 1% on any test circuit will give you a better result. Since this tester result is from the LEDS and not in digital readout (like the digital multimeter) thus is is not necessary to use the 1% resistors.
Jestine
admin
August 15, 2011 at 5:08 am
HI Tipu,
You need to make your own PCB.
Jestine
reza
February 3, 2014 at 12:10 am
hello mr beh
very good your ptoject
goodlock