Mga DIY na kapakipakinabang sa inyo at sa iba.
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Hertz
sherlanmamaril
danny
Electro
triac
arkin
DJFEL
ultrasonic™
james
13 posters
AELEXIAN EMPIRE :: Analog and Mixed Signal Device Repair (Electronics Technician Board) :: (Electronics Technician Board) :: CRT TV REPAIR
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Re: Mga DIY na kapakipakinabang sa inyo at sa iba.
by ultrasonic™ Sat Jun 29, 2013 5:50 pm
james wrote:Sir ultrasonic yung bang fbt/coil tester pwede na ang mylar capacitor dun? Wala kasing makitang mkt dito sa amin.
pwde sis... di nmn masxadong critical yan sa performance
off topic:
ano pa kaya ang maganda epost dito?
james wrote:Hay salamat natapos at nadetect na rin ang pickit2 ko na galing sa post ni maam mylene.
Di ko pa lang natetest makapagprogram ng iba pang mcu.
oie congratz sis...
ultrasonic™- 24V BATTERY
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Re: Mga DIY na kapakipakinabang sa inyo at sa iba.
by james Sat Jun 29, 2013 6:17 pm
Salamat sir, akala ko di gagana. May itatanong pa sana ako kaso di man mag-online si maam mylene.
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Re: Mga DIY na kapakipakinabang sa inyo at sa iba.
by james Mon Jul 01, 2013 12:31 pm
Crystal tester siguro sir meron ka?
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Re: Mga DIY na kapakipakinabang sa inyo at sa iba.
by ultrasonic™ Mon Jul 01, 2013 7:54 pm
meron akng nyan... teka kalkalin ko muna (^_^
ultrasonic™- 24V BATTERY
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DIY CRYSTAL TESTER
by ultrasonic™ Wed Jul 03, 2013 7:42 pm
eto na yun sis oh... eto gamit ko simple pero useful
meron din sa nuxie nyan
description:
This simple circuit will let you check if a crystal oscillator is working. Simply connect the crystal between the two labelled points, and connect 5V+ to the power connector. If the LED lights, then it shows the crystal is functioning correctly.
source: http://www.nuxie1.com/guides/crystal-tester.html
pa ot: meron pa kong nakalkal sa baol pero bukas ba lang.. wala na kasi akong oras
meron din sa nuxie nyan
description:
This simple circuit will let you check if a crystal oscillator is working. Simply connect the crystal between the two labelled points, and connect 5V+ to the power connector. If the LED lights, then it shows the crystal is functioning correctly.
All of the components should be readily available, and the transistors can be changed to most compatible NPN transistors.
You can also view the crystal waveform on an oscilloscope by connecting a probe to either the base or emitter of transistor Q1.
The Eagle files for this project can be found hereYou can also view the crystal waveform on an oscilloscope by connecting a probe to either the base or emitter of transistor Q1.
source: http://www.nuxie1.com/guides/crystal-tester.html
pa ot: meron pa kong nakalkal sa baol pero bukas ba lang.. wala na kasi akong oras
ultrasonic™- 24V BATTERY
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Re: Mga DIY na kapakipakinabang sa inyo at sa iba.
by james Fri Jul 05, 2013 6:01 pm
Bilis naman talaga meron kaagad. 
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Turns Your Digital Voltmeter to Inductance Meter
by ultrasonic™ Fri Jul 05, 2013 7:31 pm
Measuring inductance is important in making your hand-made inductors, especially when you do-it-yourself (DIY) your coil winding. An inductance meter adapter circuit would be helpful since you can measure inductance using your general purpose digital voltmeter (DVM). This circuit cost much cheaper compared to already made inductance meter instrument. Here is the scehamtic diagram of the circuit:
The circuit is very simple, containing only one voltage regulator chip and one NAND gates chip. This inductance meter adapter provide two measurement range, low range for measuring 3uH to 500uH inductor values, and high range for 100uH to 5mH. Calibrating this inductance meter is easy. First you need to calibrate the zero offset. Connect your DVM to the output of this circuit, and select 200mV range for the DVM. Short the inductor measurement probe and adjust the sero calibration to give zero volt reading on your DVM. To calibrate the low range, pick a known inductor around 400uH. Select 2V range for your DVM. Measure the inductor and adjust the low-cal pot to give 1mV per uH inductance. For example if you use a 390uH then you should adjust the low calibration pot to give 390mV reading on your DVM. To calibrate the high range, switch the range of the adapter circuit to high, and use it to measure a known inductor with values around 5 mH. Calibrate the high-cal pot to give 100mV reading per 1 mH inductance.
Turn DVM to Inductance Meter
Courtesy of Sis Coolet ng Elab
nakalkal ko lang sa baol nung nangalkal ako ng files abwt xtal tester
ultrasonic™- 24V BATTERY
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Re: Mga DIY na kapakipakinabang sa inyo at sa iba.
by triac Mon Jul 08, 2013 6:51 pm
ang dami na palang project dito nahuli na ako sa information.Sir ultra pwede bang ma e download to?napaka importante project to malaking tulong sa repair..
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Re: Mga DIY na kapakipakinabang sa inyo at sa iba.
by james Sat Jul 13, 2013 6:37 pm
Darami pa iyan kapag nagcontribute ka sir. 
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Re: Mga DIY na kapakipakinabang sa inyo at sa iba.
by james Wed Jul 17, 2013 9:59 pm
Dagdag na lang kayo mga sir ng mga gustong ninyo.
Medyo hindi mona ako madadalas dumaan dito.
Medyo hindi mona ako madadalas dumaan dito.
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Re: Mga DIY na kapakipakinabang sa inyo at sa iba.
by james Sat Aug 24, 2013 9:20 pm
Napadaan lang mga sir at maam. Kumusta na kayo?
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Re: Mga DIY na kapakipakinabang sa inyo at sa iba.
by james Thu Aug 29, 2013 7:14 pm
Sino pa magbabahagi ng pagkakaabalahan ko? 
james- 24V BATTERY
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Re: Mga DIY na kapakipakinabang sa inyo at sa iba.
by DJFEL Mon Sep 09, 2013 10:20 pm
basa mona dito pang may time...
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james- 24V BATTERY
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Re: Mga DIY na kapakipakinabang sa inyo at sa iba.
by james Fri Sep 13, 2013 6:25 pm
Sana dagdagan pa ito.
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DIY CRT REJUVENATOR/RESTORER
by ultrasonic™ Fri Sep 13, 2013 6:50 pm
lipat na rin natin to dito
DIY CRT REJUVENATOR/RESTORER
for restoring defective weak CRT/Pixtube. subukan nyung buhayin ang mga nkatambak na tube lalo na ang mga lumang SONY
Read more
DIY CRT REJUVENATOR/RESTORER
for restoring defective weak CRT/Pixtube. subukan nyung buhayin ang mga nkatambak na tube lalo na ang mga lumang SONY
Read more
ultrasonic™- 24V BATTERY
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DIY Flyback TESTER
by ultrasonic™ Fri Sep 13, 2013 6:56 pm
.
DIY Flyback TESTER
pagcheck ng flybak to... pwde mong macheck ang bawat secondary output nya using AC voltmeter..
ingat ng kunti sa Anode cap..
Read more
DIY Flyback TESTER
pagcheck ng flybak to... pwde mong macheck ang bawat secondary output nya using AC voltmeter..
ingat ng kunti sa Anode cap..
Read more
Last edited by ultrasonic™ on Fri Sep 13, 2013 7:16 pm; edited 1 time in total
ultrasonic™- 24V BATTERY
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Re: Mga DIY na kapakipakinabang sa inyo at sa iba.
by DJFEL Fri Sep 13, 2013 7:10 pm
chik ko ky Capsighter Chinoks baka na tapos na yong pcb lay out nang FBT tester..
DJFEL- 24V BATTERY
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Re: Mga DIY na kapakipakinabang sa inyo at sa iba.
by Electro Sat Oct 12, 2013 3:12 pm
gaganda pala ng mga nandito master. meron din po ba tayo ng test light ng mga electrician?
Electro- 24V BATTERY
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DIY CIRCUIT/VOLTAGE/AC TESTER
by ultrasonic™ Wed Oct 16, 2013 6:11 pm
eto ba tinutukoy mo jeff...?
na iilaw kahit one line lang ang knabit? basta hinawakan lng ng kamay ang kabilang dulo, as long na may live wire
kng parang ganyan... circuit/voltage/ac tester ang nkagisnang tawag namin jan...
composed of 1 Neon bulb at 1 resistor na esi-series
lagyan nyu lng ng 110K - 220K ohm resist ay safe na yan....
at ofcourse proper Enclosure (^_^
btw.... magandang gamitin ito sa pagrepair ng mga Christmas light, Fluorescent, 220 AC line & etc...
na iilaw kahit one line lang ang knabit? basta hinawakan lng ng kamay ang kabilang dulo, as long na may live wire
kng parang ganyan... circuit/voltage/ac tester ang nkagisnang tawag namin jan...
composed of 1 Neon bulb at 1 resistor na esi-series
lagyan nyu lng ng 110K - 220K ohm resist ay safe na yan....
at ofcourse proper Enclosure (^_^
btw.... magandang gamitin ito sa pagrepair ng mga Christmas light, Fluorescent, 220 AC line & etc...
ultrasonic™- 24V BATTERY
- Posts : 4475
Join date : 2010-08-19
Age : 38
Location : Davao City
Re: Mga DIY na kapakipakinabang sa inyo at sa iba.
by james Thu Oct 17, 2013 9:16 pm
Dami ko talaga natutunan dito.
james- 24V BATTERY
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Join date : 2011-11-14
Re: Mga DIY na kapakipakinabang sa inyo at sa iba.
by james Wed Oct 23, 2013 7:20 pm
Sana post ni sir djfil yung protect circuit nya dito.
james- 24V BATTERY
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Re: Mga DIY na kapakipakinabang sa inyo at sa iba.
by james Tue Nov 19, 2013 8:40 pm
Dagdagan nyo naman ito please. 
james- 24V BATTERY
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Re: Mga DIY na kapakipakinabang sa inyo at sa iba.
by triac Mon Jan 20, 2014 1:17 pm
ultrasonicwrote:eto na yun sis oh... eto gamit ko simple pero useful
meron din sa nuxie nyan
description:
This simple circuit will let you check if a crystal oscillator is working. Simply connect the crystal between the two labelled points, and connect 5V+ to the power connector. If the LED lights, then it shows the crystal is functioning correctly.All of the components should be readily available, and the transistors can be changed to most compatible NPN transistors.The Eagle files for this project can be found here
You can also view the crystal waveform on an oscilloscope by connecting a probe to either the base or emitter of transistor Q1.
source: http://www.nuxie1.com/guides/crystal-tester.html
pa ot: meron pa kong nakalkal sa baol pero bukas ba lang.. wala na kasi akong oras
sir ultra nakabuo na po ako nito yung gumagamit ng BC547.Ano po ang tamang pagamit nito?ano po ang sgn ng short,open,at good?salamat.
triac- 12V BATTERY
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Re: Mga DIY na kapakipakinabang sa inyo at sa iba.
by danny Mon Jan 20, 2014 4:31 pm
nice
thanks for sharing
thanks for sharing
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Location : Seattle, Washington -
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AELEXIAN EMPIRE :: Analog and Mixed Signal Device Repair (Electronics Technician Board) :: (Electronics Technician Board) :: CRT TV REPAIR
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