thank you. long time i have come back to electronics. your slow and patient explanation is very good

@INSIDEELECTRONICS

7 жыл бұрын

+Prabhakar Kannan Thank you so much for your valuable feedback. Consider subscribing if you like to support me in making new videos.😊

Thumb UP !! Excellent video !! Excellent knowledge !! Thanks for sharing !!

@INSIDEELECTRONICS

4 жыл бұрын

Thanks for your valuable feedback. :)

Very, very nice and informative video. Thank you!

@INSIDEELECTRONICS

4 жыл бұрын

Thanks for your valuable feedback. :)

Very useful . Thank you. And keep uploading videos

@INSIDEELECTRONICS

6 жыл бұрын

Thank you so much for your feedback. Consider subscribing to my channel if you like to support me in making new videos possible.😊

Thanks for the explanation of the mesh. It gives a good reference point to know if a bat is worth repairing. With the one I have, the outer mesh is already become kind of wavey and is also protruding outside. From your explanation, it will never form that charged field which means I might as well just throw it.

@INSIDEELECTRONICS

5 жыл бұрын

Yup. Salvage what is good and discard the rest.

very informative for such an inexpensive device. greetings from Sri Lanka

@INSIDEELECTRONICS

5 жыл бұрын

Thank you so much for your valuable feedback . :)

Very clear and understandable video well done mate thanks

@INSIDEELECTRONICS

4 жыл бұрын

Thank you for your valuable feedback. :)

Excellent video keep it up,very informative

@INSIDEELECTRONICS

3 жыл бұрын

Thank you so much for your valuable feedback. :)

Very very informative keep it on , upload such a great video/s

@INSIDEELECTRONICS

5 жыл бұрын

Thank you for your valuable feedback. :)

@nama.wahyudin749

3 жыл бұрын

@@INSIDEELECTRONICS sini wa

@INSIDEELECTRONICS

3 жыл бұрын

@Wahy Udin 22 Sorry I didn't get you...

Well explained, thanks !

@INSIDEELECTRONICS

4 жыл бұрын

Thank you for your valuable feedback. :)

Super! Excellent explanation.

@INSIDEELECTRONICS

7 жыл бұрын

Thank you so much for your valuable feedback. :) If you like to support me for making lot more videos, please consider subscribing.

@ghanshyam4534

5 жыл бұрын

Sir your explanation was very much extended but in my racket I found it is charging and when pressed it again shows light but no popping sound please also make how to check the individual component of bat also..

Thanks Very good explanation, really helpful

@INSIDEELECTRONICS

5 жыл бұрын

Thank you so much for your valuable feedback.:)

@vishweshwarkavri386

3 жыл бұрын

👍

@INSIDEELECTRONICS

3 жыл бұрын

:)

good explanation thank you.

@yadagirinarlagiri

4 жыл бұрын

Hi

Very good naration clears many doubts.one can learn a lot from your lecture.thnks. so for i repaired some m bats. Now i got full knowledge.thnks.sr citizen. God bless you. Bangalre.

@INSIDEELECTRONICS

3 жыл бұрын

Thank you so much for your valuable feedback. :) Glad to hear that my video was helpful for you. 😃✌🏽

Thanks a lot Sir.

@INSIDEELECTRONICS

4 ай бұрын

😊🙏🏼

very good explanation

@INSIDEELECTRONICS

6 жыл бұрын

+johnson zacharia Thank you so much for your valuable feedback .

Very clear explanation video. Thank you so much for your valuable video.

@INSIDEELECTRONICS

6 жыл бұрын

Thank you for your valuable feedback . :)

Thank you.. Good video

@INSIDEELECTRONICS

3 жыл бұрын

Thank you so much for your valuable feedback. :)

Hey good explanation.

@INSIDEELECTRONICS

7 жыл бұрын

+Vineeth Kumar Thank you for your valuable feedback. Consider subscribing if you like to see more of these videos. 😊

Good vedio cover all problem

@INSIDEELECTRONICS

6 жыл бұрын

Thanks for the valuable feedback. 😊

Very good bro . useful

@INSIDEELECTRONICS

4 жыл бұрын

Thank you for your valuable feedback. :)

omg! you are the only Indian guy that can speak english with english title oin the video! thsank god!

@INSIDEELECTRONICS

3 жыл бұрын

Thank you do much for your valuable feedback. :)

Nothing u miss sir good explain

@INSIDEELECTRONICS

5 жыл бұрын

Thank you for your valuable feedback.. 😊

ESP the transformer specifications and availability and thanks for your response.

@INSIDEELECTRONICS

4 жыл бұрын

I'm sorry to say that the transformer is not available to buy online or in any electronic stores in Bangalore area. Usually if the transformer is broken, you can carefully unwind the coil and wind new one by yourself. It'll be a time consuming work, but that's the only way.

The circuit used for reducing 220 to a lower voltage is a transformerless circuit using a big mylar cap coupled with a computed resistor. When any of these is damaged the output voltage going to the battery is also unpredictable, or most likely, very high. This destroys the battery in a very short time. Usually, the cap/resistor tandem is for small current only. If the circuit is forced to give a higher current, the cap/resistor tandem collapses, and the battery will eventually die also. To be practical, DO NOT SWITCH ON when charging. The power will also come from the cap/resistor and battery at the same time. This forces a high current through the cap/resistor. The other parts may or may not be affected, but the bat does not work anymore because the battery is busted, about 98 percent of the time, the battery is busted. I've used / destroyed a lot of these gadgets. Now, I'm using one in my outdoor kitchen. I don't need to charge or replace the battery anymore. I swing it around like a badminton/tennis racket and I'm sure I really hit a lot of those flying critters.

@INSIDEELECTRONICS

3 жыл бұрын

✌😊

Nice video! Perhaps you cover it in another video, but unless it somehow doesn't matter, you didn't mention troubleshooting in case of non-rechargeable batteries like units with two "AA" cells or two "C" cells.

@INSIDEELECTRONICS

3 жыл бұрын

Thanks for your valuable feedback. :) I was thinking like, in case of a bat with replaceable battery, the first obvious thing people will do is changing the battery. That's why... :P

thank for explain good and i need how to check components in board with is problems

@INSIDEELECTRONICS

6 жыл бұрын

Thank you for your valuable feedback. Which component do you want to check in this board?

Tq Bro

@INSIDEELECTRONICS

4 жыл бұрын

😊

Nice video bro, I think my filter cap at the swatting end is gone. Will update.

@INSIDEELECTRONICS

6 жыл бұрын

😊 Thanks for the valuable feedback .

Best vidio but can you make a video explaining all the components

@INSIDEELECTRONICS

3 жыл бұрын

Yes of course. I shall do that in the future. :)

About the dielectric , have you tried toothpicks? Just use a larger air space between the meshes

@INSIDEELECTRONICS

4 жыл бұрын

Nope, I haven't tried with tooth picks. But I've tried with larger separation between the mesh but all that is going to happen is it it is going to find another route to ground. Make it too large and the bat becomes useless.

Very very good information thank you sir.please I want same pcb

@INSIDEELECTRONICS

3 жыл бұрын

Thank you so much for your valuable feedback. :)

what is the optimal battery reading for a new battery? And can you replace the rechargeable ones with brand new aa batteries in series?

@INSIDEELECTRONICS

4 жыл бұрын

Voltage level of a new battery can be anywhere between 3 to 4 volts. It depends on how long it came out of production. And yes you can connect two AA cells in series but make sure to adjust the capacitor value to decrease the charging current.

Hey! Thanks for the video. I bought a new bat the other day but mosquitoes don't die when they come in contact with the mesh. There is no arch or spark in the mesh at the time of contact. Green light glows i.e. it recharges the battery fine, also red on off light also glows when button is pushed. what do you think is the issue here. Thanks.

@INSIDEELECTRONICS

6 жыл бұрын

Just because the LED is on, doesn't mean the battery is charging. You can follow the steps mentioned in my video to see what is wrong.😊

@anuragshakya9163

6 жыл бұрын

INSIDE ELECTRONICS! Thanks!

I really appreciate yr effort to make it clear all the problems in a mosquito bat thank you

@INSIDEELECTRONICS

3 жыл бұрын

Thank you so much for your valuable feedback and support. :)

@sergen6603

Жыл бұрын

@@INSIDEELECTRONICS ура. Сцсоупциупт / с с лонд! -,2&2’цмц /‘ Ушиц э

Thank you a very good video now I have tried repair a mos bat when I press the button indicator don't lite nor bat doesn't work the even battery don't charge can you explain what is the problem?

@INSIDEELECTRONICS

5 жыл бұрын

Thank you for your feedback. :) First check weather the battery is good or not.

the "FULL BRIDGE RECTIFIER"

thank u for sharing this very informative vid. ... sir , I need a way to modify EITHER , this type of zapper racket .. OR .. the big electrical - AC operated - one , to be operated continuously by DC 12V of solar system ... Is there any way to doing so , you - or any one else here knows - PLEASE explain it in a reply !!! ... thank you in advance .

hi, in this circuit has battery charge controller? that control overcharge battery.

@INSIDEELECTRONICS

4 жыл бұрын

No there isn't any. It continues to trickle charge the battery even after fully charging it.

Also, at about 26:17 you mention you're thinking about doing a video on the "voltage multiplier" section... have you done that yet, or are you planning to make it?

@INSIDEELECTRONICS

3 жыл бұрын

Nope! I didn't made it yet! However, it's still in my long "two page to-do list".😀 Due to my work timings and other life schedules, making videos on time is very difficult.. :D

I have a busted D965(22V 5A) wat should I replace it with

@INSIDEELECTRONICS

6 жыл бұрын

+Sathishkumar Vasu I've already provided links to suitable replacement transistors in a comment below . Please go through it to get the full list of transistors.

VERY VERY NICE ENGLISH WITH PERFECT ACCENT. EACH WORD WAS VERY ACCURATE BUT DO NOT MIND YOUR VEDIO BECAME LENGTHY.

@INSIDEELECTRONICS

5 жыл бұрын

Thanks for your valuable feedback. 😊

wow excellent video...made very good explanation.i am in search of a good explanation like this .I want to make a mosquito killer for my home ( hate these China made) .can you help me in this

@INSIDEELECTRONICS

7 жыл бұрын

+kslv varaprasad Thank you so much for your valuable feedback. Consider subscribing for supporting my channel. 😊 Yes, I can help you with what I know.

You explained very neatly much appreciated.. Can you please tell me how to check capacitor properly ? When I check charging out put getting 180-220 volt I got surprised (shocked)

@INSIDEELECTRONICS

3 жыл бұрын

If you are getting around full mains voltage at the charger side, chances are the battery is open. These capacitive dropper rectifiers depends on the load itself to maintain the required voltage, unless clamped by any zener diodes. So if the load fails, the voltage will climb back to the full peak voltage. Checking the capacitor properly requires a meter that can read capacitance. Otherwise all you can do is to use the continuity test. Put the multimeter in continuity mode and touch both the terminals of the capacitor. You may hear a beep for a few seconds and then the resistance will climb until the meter reads OL or something similar. That means the capacitor is okay. If you continue to hear the beep in full volume for a long time the capacitor is shorted. If the meter just reads OL instantly when connected to the capacitor, then its open. But these tests won't show how far the capacity has dropped due to being put to use. If the capacitor has leakage or has lost its rated capacity, it may still pass the continuity test but will perform poorly in circuit. So better test it with an LCR meter if possible. Thanks for your valuable feedback though. :)

@balakotireddy7006

3 жыл бұрын

@@INSIDEELECTRONICS Thank you once again for prompt response.. Looks like culprit is capacitor i will change and see either it works or not..

@INSIDEELECTRONICS

3 жыл бұрын

✌😊 Contact me via email if you have any further issues.

well when they burn out in 10-15 hr. you have kill 300 or so yellow jackets it is not cheep. All though they are warranted but still. put the swatter on a wood frame six-inch off the ground put half can cat food fish put a rubbery band on the switch to keep it on. every 6 hr change the batteries . clean of the grid of dead yellow jackets and flys and set it up again.

@INSIDEELECTRONICS

3 жыл бұрын

But why do you need to change the batteries every 6 hours, when you can buy the rechargable battery type fly swatters? They come with lead acid batteries and mains operated battery chargers in one single unit. Just keep it connected and it'll run on mains voltage just fine! :)

thanks for good explanation . but can we use transformer in stead of batry .

@INSIDEELECTRONICS

5 жыл бұрын

Thanks.. :) So, you want to operate it at mains level? Instead of battery?

@incubatork

4 жыл бұрын

You can use a telephone wall charger to power it but use a resistor to limit voltage

Hi I changed transistors,transform Both but still not working which one should I check how do I check high voltage capacitor

@INSIDEELECTRONICS

5 жыл бұрын

Check for continuity to the output side and check the output diodes also.

My mosquito bat some time works sometime not. I have changed the tranjistor. and transformer seems okay in multimeter test. can you tell me probable reason? High voltage diode i Can't check.

@INSIDEELECTRONICS

4 жыл бұрын

Have you tried changing the switch? Sometime, the switch can cause these kind of issue. :)

What is problem if the new battery is not getting charged sufficiently and goes down .shpuld the charging circuit condenser to be changed?

@INSIDEELECTRONICS

4 жыл бұрын

Yes it could be the problem. If the capacitor is faulty it may not provide enough current to charge the cell. Also, the new battery may also be bad. Try changing the capacitor and see if it fixes the issue.

very patiently and well explained.. I have four bats which I believe the battery is mostly fine and i need to get a replacement capacitor. Could you kindly suggest any capacitor which would probably fit all of them or rather any common name by which shopkeepers can understand my requirement and give it to me.. merely saying I need a high voltage capacitor of 2kV won't suffice I guess.. (I'm not a professional, just a DIY guy to be honest.)

@INSIDEELECTRONICS

6 жыл бұрын

+Soham Dutta Thank you so much for your valuable feedback. I believe you are talking about the final capacitor that is connected across the mesh terminals, if so the replacement capacitors are usually 470nf 1600V or 680nf 2000V. Basically the higher the capacitance value the larger the zap will be. But it will drain the battery faster. You can check for any markings on the capacitor and replace it with another of the same value. :)

@sohamdutta2007

6 жыл бұрын

+INSIDE ELECTRONICS! thanks. yes that's what i was referring to. I guess a better zap is the one to go for 😁. Well, Most don't have any value written on them. So will selecting 680nf 2kv serve it all? And are they actually commonly available in the market? and any idea what it's reasonable price should be approx?

@sohamdutta2007

6 жыл бұрын

+INSIDE ELECTRONICS! also how do you procure lead acid cells if they are dead or weak? is it rather better to abandon it in that case?

@INSIDEELECTRONICS

6 жыл бұрын

+Soham Dutta Well it depends on which lead acid batteries are you referring to. If its regarding those found inside these mosquito rackets, its better to discard it. But the bigger higher capacity cells can actually be brought back to life. Sometimes all it takes is a bit of electrolyte. You can search on KZread for how to do it. :)

@INSIDEELECTRONICS

6 жыл бұрын

+Soham Dutta Sometimes it has some markings in it. If it hasn't any, then it's safe to go with the above cap. :) The price for those are actually cheap. Its like 10 Rs for a pair I think. But sometimes it gets cheaper.

The red plastic of my mosquito zapper sliding switch has broken. How to add external switch in the circuit?? Thanks

@INSIDEELECTRONICS

6 жыл бұрын

If its the sliding switch that is broken, then the easy way to get around is to solder the slide switch terminals together. Then the second push button switch can be used for turning the bat on/off.

@piyushkcnlu

6 жыл бұрын

INSIDE ELECTRONICS! Thank you very much. I soldered two wires on the terminals of circuit where the broken switch is present and i bypassed that switch by affixing push on/off switch on the handle. :) Again lot of thanks

most of these boards do not have transistor or condensor specs. pl help.

@INSIDEELECTRONICS

7 жыл бұрын

+Prabhakar Kannan The transistors used in these are general purpose high frequency switching transistors. You can easily find the datasheet for most of them by a simple Google search. Capacitors usually are metal film capacitors that doesn't have a specific manufacturer. So they don't have any datasheets. But they are quite easily available from any electronic shops for cheap or else you can salvage high quality capacitors from old tv circuit boards. ✌

I charged battery fully ,after I use bat ,after some time killing power fully reduced and also output led glow dim and full off ,what is the reason battery or capacitor?

@INSIDEELECTRONICS

4 жыл бұрын

Probably the battery has lost its capacity. You can try replacing the battery. The price is around 40Rs in my area.

How does a capacitive dropper bring the voltage to exact 4v to charge the battery without a zener

@INSIDEELECTRONICS

4 жыл бұрын

Its because the capacitor acts as a resistor in AC circuits. So when used in series with battery the current drawn by it is enough to bring the voltage down to what the battery voltage is.

in my instrument fly slowly burns away n there is no pooping. how can i rectify?

@INSIDEELECTRONICS

6 жыл бұрын

+Kapil Kumar Check the battery and the final capacitor and replace whichever is faulty.

I bought few D882 transistors online and installed one, but it didnt worked, can you tell me ow to check the remainingg ones as someone told the output should be more than 9. Let me know whether the transistors are good or faulty ones.

@INSIDEELECTRONICS

Жыл бұрын

So you want to check whether the transistors are good or not? If so, using a multimeter in diode mode, measure across the base-emitter and base- collector pins, with the +ve probe connected to the base, you will get a reading of around 0.6V if it is a good one. In a TO126 package, pin 1 is the emitter, 2-collector, and 3 is base.

@sureshendla

Жыл бұрын

@@INSIDEELECTRONICS Thanks for your reply, the reading in multimeter is 672 on both. how can we know the voltage of this transistor? I had few questions as watched so many videos on mosquito bat, but didnt get much answers. Checking voltage or testing with neon bilb at transformer can we able to know both transformer and transistors are good? What is the best way to find the exact fault? My bat doesnt spark at all.

@INSIDEELECTRONICS

Жыл бұрын

Most good silicon transistors will show around 0.6V only. So that is quite normal. But, if you were asking about the maximum operating voltage of d882, then it is 40V. Regarding the neon bulb method, yes it can be used to test the transformer and transistor at the same time. All you need to do is connect a neon bulb at the output pins of the board, where the metal mesh is connected to the board. Now when the bat is on, the neon should light up if everything is working fine. In your case, the issue could be a faulty battery or a faulty high voltage capacitor. If any of these is bad, the bat will work, but there will not be sufficient power to make the spark to kill the mosquitos.

@sureshendla

Жыл бұрын

@@INSIDEELECTRONICS Thanks for your feedback I am closure to find the fault. Their is no spark at all and the transistor is getting hot. The battery is ok and tested with another battery installed a new one too. I will buy neon bulb and will let you know once tested. Thanks again your reply, I am hoping to solve the problem.

@INSIDEELECTRONICS

Жыл бұрын

Please note that we cannot measure the output voltage of this transformer directly with a normal averaging multimeter. You need a high voltage probe and also a true RMS multimeter. If the transistor is getting hot, that indicates a possible short at the transformer. Remove it and check the windings. Else the transistor will be damaged. You can get a neon bulb from old mains indicators or an old mains tester screwdriver. Have a good day.😊👍🏼

Why dont publish simple circuit on paper ?

Please what is the transformer winding reading.

@INSIDEELECTRONICS

3 жыл бұрын

There are no markings on the transformer. It seems to be custom made by the manufacturer.

can we attach a long wire directly to this BAT input end and Use ti With 220v direct AC volt supply without using BATTERY....because these bat batteries are very weak.

@INSIDEELECTRONICS

6 жыл бұрын

In theory it is possible. But it will easily burn the transistor within the first few usage. I've tried it myself and found to be useless.

I'd like to power these with 18650 3.7v batteries because the batteries in the AC rechargeable ones die quite fast. Of course I would lose the the AC recharging but I do have mutliple 18650 and a reliable xtar charger. I was planning to use an LM317T but I found out that the min Vin - Vout = 3.0v but these are typically powered by 2.4v nicd. and that's just a 1.3v difference, way below the the minimum voltage drop. I was wondering if I can modify the circuity myself. minimal electronic experience.

@INSIDEELECTRONICS

6 жыл бұрын

Instead of trying to charge the li ion battery with AC power, you can remove the NiCad charger circuit from the board completely and use a cheap Chinese battery protection board. These are available in eBay for as little as 1 dollar for a pair. You can then charge the battery using any USB power supply. That will be the more economical also.

@bryanbisimotopinas345

6 жыл бұрын

Yeah, I have a reliable charger and am not trying to charge the Li Ion thru AC. What I want to do is drop the 3.7v to 2.4v since my bat is powered by 2xAA rechargeable. I tried powering it directly by 3.7v and the solder of the power wires melted. fun stuff. Thanks for answering.

@kandasamy363

Жыл бұрын

@@bryanbisimotopinas345 you can series with 2 in4007 diode between + side battery and board. It reduces 1.2 volt and you get 2.5 volt at circuit board.

@bryanbisimotopinas345

Жыл бұрын

@@kandasamy363 ohhh! Would have been very useful 4yrs ago. The newer bats do have removable 18650 batteries now so no reason to do this now really.

@kandasamy363

Жыл бұрын

Thanks 🙏

Umm where can I get the bat from , in SA

@INSIDEELECTRONICS

3 жыл бұрын

The cheapest option will be eBay. :)

Sir what's the value of high power PF Capacitor?

In AC charging time transform making sound and bat also not working, can you explain what is the problem ?

@INSIDEELECTRONICS

5 жыл бұрын

Seems odd. Because while charging the transformer section is inactive; unless the switch is kept pressed. So.. can you tell a bit more in detail?

What is the possible problem of my mosquito swatter because I was about to charge it and my son accidently activated it while charging and stop working

@INSIDEELECTRONICS

Жыл бұрын

Most probably, the sudden power on while being charged, might have created a voltage spike which instantly killed the switch transistor.

@Random_Movies_edit

Жыл бұрын

You mean the transistor was the problem

@INSIDEELECTRONICS

Жыл бұрын

Most probably yes. You can test it with the help of a multimeter.

Can u make a video on how to direct to an outlet , rather battery use. Convert it!

@INSIDEELECTRONICS

3 жыл бұрын

It is possible to convert it and I've personally tried it 3 or 4 times before. 😀 However I didn't recorded doing it because 1. The entire bat becomes reference to AC mains and it might kill the user rather than the mosquitoes, if not used properly. 2. The primary winding of the transformer and the switching transistor got damaged in all 4 bats within the first 20 minutes of use, no matter how many different resistor values I've tried. (sometimes the resistor itself burns before the transistor.) So I don't want to make a video about something that works only for just a few hours and also unsafe. 😬 Anyway I will still keep this as a to-do project. 👍

Hello! Mine also have faulty battery, do you think connecting the battery wires to usb and then using a powerbank is okay or safe? I saw it from here watch?v=IncCAdTyaBU (yt doesn't allow links, so just the last part of the url)

@INSIDEELECTRONICS

16 күн бұрын

Even though it is possible to do so, I don't recommend it. Because these boards do not usually have any sort of input protection. And it depends on the internal resistance of the lead acid/zinc chloride battery for the current limiting. So when you connect it to a power bank, there is a possibility for damaging the output section. Use it at your own risk.

@bulate0101

16 күн бұрын

@@INSIDEELECTRONICS Alright thank you bro!

Where we can buy the circuit board?

@INSIDEELECTRONICS

6 жыл бұрын

Unfortunately, there are currently no way to buy the exact circuit board online from India.

One question, how the circuit converts 220 volt AC into approx. 3volt DC to charge the battery without using transformer?

@INSIDEELECTRONICS

6 жыл бұрын

Its because they are using a capacitor in series to the bridge rectifier. That way the capacitor acts like a resistor (and the property is called reactance) which will reduce the voltage to whatever we desired (here 220v to 4v), but without much wastage as if a resistor was used. It's a very common and cheap way to convert AC to DC. But the main problem with this type of capacitive "series dropper" circuit is the risk of electric shock. Since there is no isolation between AC side and DC side. Also the voltage will shoot up to full 300 volts (RMS value) if there is no load connected. So it is not safe.

@ratnadeepdhar4816

4 жыл бұрын

Prakash Chandra very nice explanation Sir

Gteat video!! Have query HS D 965 7L R which equivalent transistor can use here.

@INSIDEELECTRONICS

3 жыл бұрын

D965 is an obsolete transistor as far as the model is considered. It's by the way a 5A 22V NPN transistor and so you can use any part of similar or above rating. What exactly is your requirement for this part? :) Thanks for the feedback too. :)

@nitu0606

3 жыл бұрын

@@INSIDEELECTRONICS Thanks a lot for your reply! I have 3 mosquito bat planing to replace existing transistor H SD 965 7L R Looking equivalent similar transistor

@INSIDEELECTRONICS

3 жыл бұрын

Okay, for such applications you can use the commonly available 13003 transistor. It's cheap and often found in cheap mosquito bat boards. Although you can still buy D965 online. :)

@shafiqulislam2663

3 жыл бұрын

882,2583,8050,3407,2470,880,135,139,140,D9,2N2222. But pinout could be different.so check before connect and connect properly

My racket has a dead LiTian AA 600mAh 2.4V battery pack. I would replace it, but is it Ni-Cd or Ni-Mh?

@INSIDEELECTRONICS

5 жыл бұрын

Most probably it'll be ni mh. But better check in its datasheet if available.

@db1236

5 жыл бұрын

@@INSIDEELECTRONICS unfortunately no datasheet available :(

@INSIDEELECTRONICS

5 жыл бұрын

Not to worry, these Chinese batteries usually don't have any datasheets available. You can replace it with ni mh batteries.

Can you please give information about transformer ? From where i can buy it ? Dont wanna make. Any mod3l no. Or something.

@INSIDEELECTRONICS

4 жыл бұрын

So far I've found no sellers listing these transformers. Seems like these are custom wound for the manufacturers requirement since there are no part numbers as well. The only option as of now is to take it from another board or wind it.

@entertainkivines7754

4 жыл бұрын

@@INSIDEELECTRONICS thanks for reply.

@INSIDEELECTRONICS

4 жыл бұрын

:)

how to check each components with multimeter... Resister, transister, capasitor and transformer, you're forget to expose it.

@INSIDEELECTRONICS

3 жыл бұрын

I will definitely make another video showing the same. :)

Bhai yeh circuit kanha milega

Can I use old Mobile phone battery (3.7v) instead of LeadAcid battery? Any one can answer.. Please..

@INSIDEELECTRONICS

Жыл бұрын

I've tried it. It will burn the transistor if you use it for more than a few seconds, because there is no current limiting here.

Hello sir I watching your video mosquito bat repair video some face my mosquito bat when I press button led bulb glow mosquito bat not sparked light not show I thing spark capecitor weak which valve capecitor repleace tell me sir

@INSIDEELECTRONICS

6 жыл бұрын

+Babu E The value is usually printed on the capacitor itself. You can replace it with any non polar high voltage capacitor (not less than 1600 v) which typically are of 470 nf 1600v or 680 nf 2000v. Also check whether the battery is good or not.

What's the model no. Of the transformet

@INSIDEELECTRONICS

4 жыл бұрын

I've no information on that since I've never seen any of these transformers with any kind of info printed on it.

Where is the purchase this pcb

@INSIDEELECTRONICS

3 жыл бұрын

Unlike other Chinese items, this pcb cannot be easily purchased as a separate item. But it's very easy to make it by yourself in a general purpose pcb. Or you can salvage it from another mosquito bat as well. May I know what is your purpose? So I can shed some light in the right way. :)

I have one question,What will be the voltage across primary winding of the transformer during operation?

@INSIDEELECTRONICS

6 жыл бұрын

The voltage across the primary will be the voltage of the battery. Its the high frequency pulsating DC voltage that causes a higher voltage to be induced in the secondary. :)

@7760468484

6 жыл бұрын

INSIDE ELECTRONICS! This voltage can be measured using multimeter (set dial at DC voltage)?

@INSIDEELECTRONICS

6 жыл бұрын

Well it can be measured, but not with every multimeter. Because the voltage across the primary (and in turn the secondary) will be a high frequency square wave, not every meters will be able to register the proper voltage. It may show some random average value.

@7760468484

6 жыл бұрын

INSIDE ELECTRONICS! I shorted the push button to check the voltage.but after some time I saw the transistor (D965)over heated and started smoke.I checked transformer after desoldering from the circuit and the primary winding reads 5.72 ohm, feed back winding reads 0.52ohm, secondary (high voltage) winding reads 1.24H.Voltage across the battery is arround 4volt with load.What will be the problem with the circuit for not working?

@INSIDEELECTRONICS

6 жыл бұрын

For the transistor to get heated up that much, the obvious reason will be a short circuit. Now that the transistor itself has been smoked, you need to change it anyway as it may have shorted internally. After replacing the transistor, look for any short circuit using a multimeter and also check the resistors in the circuit as an open/shorted resistance can cause a higher current flow. You can get these parts for almost free if you search around in your local scrap yard as people often throw them away for no good reasons. :)

Can you please share schematic diagram and components value sir? Also, how to modify this circuit? Thanks

@INSIDEELECTRONICS

6 жыл бұрын

+Vishal Khaire The schematic diagram can easily be found from a simple Google search my friend. Which component value is you want to know? And what exactly do you mean by modifying the circuit?

Hi! Thank you for the video. Could you please tell me the specification of the output stage diodes (multiplier section)?

@INSIDEELECTRONICS

6 жыл бұрын

+Jeovane Sousa The diode datasheet contains all the exact specifications pal. It varies from diode to diode. So to get the specifications for your particular diode, just do a Google search with the part number. :)

@jeovane.

6 жыл бұрын

INSIDE ELECTRONICS! I am sorry if I was not so clearly. The diode code number is what I want to know.

@INSIDEELECTRONICS

6 жыл бұрын

+Jeovane Sousa The diodes usually are 1N4007, ordinary 1 Amp rectifier diodes. The datasheet can be found here: www.google.ae/url?sa=t&source=web&rct=j&url=www.diodes.com/assets/Datasheets/ds28002.pdf&ved=0ahUKEwjUo7GVuanYAhWFthQKHXHOBBMQFggxMAA&usg=AOvVaw0mgOEo_CdF9-jRD6quq7vm :)

Where to buy the battery?

@INSIDEELECTRONICS

6 жыл бұрын

You can buy it for around 35/50 Rs from any local electronics store or from eBay.

Battery voltage 4, red light On but green light not getting on when charging, spark is low what is the possible reason

@INSIDEELECTRONICS

4 жыл бұрын

Check the section where the green LED is in. Probably the charging capacitor is faulty - assuming the green LED is in the charging section. If the battery is low the sparks will be low. :)

Pin voltages ...... which points how much voltage expected??

@INSIDEELECTRONICS

4 жыл бұрын

At what points? Its not possible to measure the output side with any normal multimeter because the output side is in higher frequency and can mess up the readings. Input side is normally under the battery voltage besides the charging stage.

How to check transformer. Out put capacitor is ok. No high voltage o/p, transformer secondary pin no voltage, primary all pin have voltage showing.

@INSIDEELECTRONICS

5 жыл бұрын

You can run it through a dc voltage continuity test. Use a 9V battery and an LED with resistor to check the secondary side.

hey bro. In my mosquito racket every thing is ok..but i getting very low output voltage in racket but.when i disconnect the wire of racket trap and shorted the output voltage it gives high spark.. i replaced battery, TR, capcitor but problem is still couldn't solved...plz help..waiting for your reply...

@iwantsushant

4 жыл бұрын

High voltage ke karan .. bohot sari magnetic dhool net main jama ho jati hai.. jaise ki aapne purane tv ke under CRT pr jmi hui powder soft dhool dekhi hogi... Mosquito bat ke net mai yahi dhool unknowingly voltage ko drop kr deta hai.. So net kboliye clean kijiye.. Bend free kijiye aur reassemble kijiye... Maine same problem solve kiya hai 👍👍👍

@INSIDEELECTRONICS

4 жыл бұрын

The bat is now totaled. This is because the plastic holders for the metal mesh has lost its insulating property and are now leaking high voltage at the output. That is why the bat gives full power when the mesh is not connected. There is nothing we can do to recover it.

@RahulSingh-gm8in

4 жыл бұрын

@@iwantsushant hey bro i did it ..but problem couldn't solved ....and there is a sound like ssssssssshhhh from the net.

hai sir my mosquito racket very low out put power now... way is the plm ...? pls replay ... battery is good

@INSIDEELECTRONICS

7 жыл бұрын

+nafe hash The problem could be anything from the battery to the final voltage multiplier. Does it makes the popping sound when a fly gets trapped? Or is the fly slowly burns away? Did you checked the battery under a load?

@rajaroy_07

7 жыл бұрын

Hello sir same problem battery is ok but output is low fly slowly burns

@INSIDEELECTRONICS

7 жыл бұрын

+Raja roy Try changing the output capacitor. You must use a proper voltage rated capacitor or else it may explode.

Where can I get battery??

@INSIDEELECTRONICS

4 жыл бұрын

You can find it online or from local electronics store. The price is around 50Rs in my area. :)

Transistors D695 is short... Can I replace with D8050?

@INSIDEELECTRONICS

6 жыл бұрын

+High Quality Amps Of course you can. It can handle 1.5 amps of current. But it's always a good choice to go for a higher rated replacement component. So here is the full digikey listing for suitable replacement transistors with 2 to 2.5 amp ratings. tinyurl.com/y83zo7sn

@highqualityamps1699

6 жыл бұрын

INSIDE ELECTRONICS! Thanks... But the pin out is different ...?

@INSIDEELECTRONICS

6 жыл бұрын

+High Quality Amps That is fine. You can adjust the leads to fit the proper way. The collector pin of new transistor should be adjusted to fit in the existing collector point, like wise the remaining pins also. 😊

@patelpritul2510

5 жыл бұрын

@@INSIDEELECTRONICS sir D965 ki jagah konsha tra laga ye

@INSIDEELECTRONICS

5 жыл бұрын

Sorry I didn't get you.. :(

What is the value of out put capacitor

@INSIDEELECTRONICS

6 жыл бұрын

Usually around 22 nf @ 2kv rating. But could be different in different boards.

@vjekoslavcvetnic7500

5 жыл бұрын

In my case is 0,47uF 400V and it failed and it was shorted, I had to repleaced it.

Can you please share the diode number used ?

@INSIDEELECTRONICS

6 жыл бұрын

Samir Wadke The diodes are all 1N4007 rectifier diodes .

@eubyvaz568

6 жыл бұрын

INSIDE ELECTRONICS! Thank you for the video. My bat uses RFC4K diodes, all of which are open. I can't find a replacement. Is there an alternative that can be used instead?

@INSIDEELECTRONICS

6 жыл бұрын

These are high voltage low current fast recovery type diodes. You can find some alternatives from here: ppmpower.co.uk/4kv-fast-recovery-diodes-now-standard-release/ Or search for UFHV4k diodes. But these are somewhat expensive compared to regular diodes.

Use meter to show the component checking

@INSIDEELECTRONICS

5 жыл бұрын

I'm planning for a video in that specific topic. Thanks for the feedback :)

@zozo71zozo71

5 жыл бұрын

@@INSIDEELECTRONICS good

Sr ise banana sikhaiye

Good explanation, but voice not so clear please increase the valume

@INSIDEELECTRONICS

5 жыл бұрын

Thank you so much for your valuable feedback. :)

@deepakgm7235

5 жыл бұрын

I think you should check you headphones. The voice is actually more than audible and pretty clear.

My mosquito bat is killing mosquitos but not making sound.. Pls guide me... What I need to Change...

@INSIDEELECTRONICS

3 жыл бұрын

Well... if the bat kills mosquitos, then your bat is working fine I guess. Some bats may not make much noise so that's pretty normal. :)

pls giv me the... number of high power capacitor

@INSIDEELECTRONICS

7 жыл бұрын

+nafe hash It can be found on the capacitor itself.

We're I parches components

@INSIDEELECTRONICS

2 жыл бұрын

Which component are you looking for?

Where can i get transformer? Is it available in india easily?

@INSIDEELECTRONICS

5 жыл бұрын

Unfortunately no. Either you have to rewind it manually or get from another board.

@uncool_wonderlust

5 жыл бұрын

@@INSIDEELECTRONICS thanku

@sureshendla

Жыл бұрын

It is available in youtube, someone is selling

@INSIDEELECTRONICS

Жыл бұрын

Now the transformer is available to purchase online. Here is a sample link. Please observe caution when making online transactions. The link below is just for reference. Purchase at your own risk. makerbazar.in/products/type-2-mosquito-bat-transformer-for-refurbishing-old-mosquito-bat-pcb?gclid=Cj0KCQjw9ZGYBhCEARIsAEUXITV0BSPYV4Ru5NZpiSWCmwwEDmyVBm6NfgzuAtUw69rFvDJP0IBVMZsaAvqtEALw_wcB

Please reply with a suitable transistor

@mohamedmifras7530

5 жыл бұрын

Use D882

@patelpritul2510

5 жыл бұрын

@@mohamedmifras7530 and adhre tranjishter no

don't say check. you demo by checking and show rt or wrong and values.

@INSIDEELECTRONICS

5 жыл бұрын

At that time I was intended to make a short video, though it is what it is now, that's why it happened.

Hey bro ...how to solve low spark problem.....

@INSIDEELECTRONICS

2 жыл бұрын

Try changing the output capacitor.

@Mr_memesJi

2 жыл бұрын

@@INSIDEELECTRONICS I changed but then also low spark problem.....

@INSIDEELECTRONICS

2 жыл бұрын

That means you've to change the multiplier capacitor too after the transformer.

@Mr_memesJi

2 жыл бұрын

@@INSIDEELECTRONICS can you please explain in detail....😶

@INSIDEELECTRONICS

2 жыл бұрын

First, check the battery. If the battery is old, then it can't deliver the current to create that sparks. Replace if necessary. Then check the two capacitors after the transformer. These are usually blue in colour, and will be before the output capacitor. Check their value and replace if necessary. 😀👍🏼