Fly away damn mosquito  ...  - Page 1
Forum section: electronics / general

author: Kiriakos-GR
author_rank: Super Contributor
timestamp: April 28, 2010, 10:16:33 am
content: Every night I have my mosquito pall , to visiting me and fly over my head.I had politely ask to stop doing it , but he does notThe high voltage grid with the Ultra Violet light , does not attract him.Still I have not try those buzzing with high frequency devices, to see if they even work.The old fashion cure as an cup with vinegar in the room , it kills me first ..Do you have any tested solution to demonstrate or suggest ?

author: ElektroQuark
author_rank: Unknown
timestamp: April 28, 2010, 10:25:48 am
content: Look for a mosquito-boyfriend for her. She will let you alone.

author: TheDirty
author_rank: Frequent Contributor
timestamp: April 28, 2010, 01:01:33 pm
content: http://gizmodo.com/5470148/this-is-a-mosquito-getting-killed-by-a-laser

author: migsantiago
author_rank: Frequent Contributor
timestamp: April 28, 2010, 01:18:23 pm
content: Same problem here.I use a fan next to my bed to make them go away.

author: saturation
author_rank: Super Contributor
timestamp: April 28, 2010, 01:47:54 pm
content: Try LED light, some folks are attempting to patent this.http://www.bioone.org/doi/abs/10.2987/08-5815.1?journalCode=mocoas you read, its not a homogenous response to all types of light, but its better than no light. Since LED are cheap, you can make one of each and catch them by species.To kill them, you can either make a kV low amp grid killer, I saw some fly swatters like this, or just use sticky tape traps until you know it worth putting more time into making the kV killer.

author: Kiriakos-GR
author_rank: Super Contributor
timestamp: April 28, 2010, 02:53:05 pm
content: Quote from: migsantiago on April 28, 2010, 01:18:23 pmWell I usually do that too , but its still April and the temperature are still low .

author: DJPhil
author_rank: Frequent Contributor
timestamp: April 28, 2010, 05:41:14 pm
content: A hungry mosquito is sensing two things at long range to find a meal: CO2 and a particular sort of alcohol (known as mushroom alcohol) that's commonly breathed out and sweated out by mammals. In my opinion the alcohol part is what makes some people 'bug magnets', but that's just a guess.You can bait them to your bug zapper with some dry ice, a candle, or pretty much anything that makes more CO2 than you do. The mushroom alcohol is harder to get a hold of, it's sometimes used in perfume.A friend and I once cleared out his backyard, which is right next to a slow moving creek and a stand of woods, using dry ice and a bug zapper. About three hours before a party we set up our mosquito death machine and left it to run. In two hours we had something like a pound of mosquito carcasses in the dry ice bucket! The forest had plenty more for us, but I think it helped a bit. You can start some great drinking conversations about what to do with a pound of dead mosquitoes.Keep in mind that smoking produces a lot of CO2, so if you're a smoker like me they just love you.Hope that helps

author: Kiriakos-GR
author_rank: Super Contributor
timestamp: April 28, 2010, 05:49:59 pm
content: Once, I had see on TV, one documentary about mosquito & CO2 + large scale traps (out door use)Just ordered the special electronic fly swatter and some sticky tape traps.Quiting smoking its not an option.I have quit of everything else the last years.I do not wish to die healthy ..

author: lhc
author_rank: Contributor
timestamp: April 28, 2010, 07:34:50 pm
content: I just use vaporizer with insecticide. Kills them all.http://www.brosdistributoruk.com/mosquitos/mosquito-plug-in-vaporizer-liquid-refill.htmlWorks 100%. No problems with mosquitos and other insects.You can buy one from Bros or Raid. Just plug it and it will kill them all. Leave it for the whole night with a window open a bit.It works great I really love it, there is nothing better! Just be careful around fishes and cats - they can get sick from the insecticide.Problem solved

author: saturation
author_rank: Super Contributor
timestamp: April 28, 2010, 08:42:49 pm
content: I think the idea is if we can devise an electronic version, it could be less potential harmful to animals and man.DEET works completely, I've used in in forests against all bugs, but it is DEET.There are also vaporized chemicals such as this, and others, and all work well, most of the time.If this LED version indeed works, batteries can be solar powered during the day, or even hand cranked, or plugged in, depending on how primitive the conditions you anticipate. The bug zapper tennis racket draws very little no current in standby and works off 2 AA batteries.http://www.amazon.com/Charcoal-Companion-Amazing-Bug-Zapper/dp/B00008GS96/ref=sr_1_3?ie=UTF8&s=home-garden&qid=1272487161&sr=8-3Quote from: lhc on April 28, 2010, 07:34:50 pm

author: Kiriakos-GR
author_rank: Super Contributor
timestamp: April 28, 2010, 10:22:27 pm
content: Well I do own this device , and I can replace as test, the inner UV tube ,with one PCB long enough , with deferent colors of LED's .I am thinking to actually try it out , because I can hardly find , replacement tubes ,worthy as the original one , that came with it.I will do something powered with batteries (rechargeable ) , and if it works,I will do something permanent.The color choice of LED's , from the above document , looks to be White - Green - Blue.The high voltage grid , works fine .

author: Kiriakos-GR
author_rank: Super Contributor
timestamp: May 13, 2010, 07:08:07 pm
content: My new weapon are here since yesterday ... I was extensively tested it .. and it worths every Euro Cent. ( 6 EUR shipped )I had only to replace any screw on it with longer ones , and to make more permanent the secondary clip in the battery case , because it was flimsy .. I had to use dual side tape, so to stay in place.Thats what I enjoy with the Chinese makers , they always left some details to be cured by the customer.Other than that it just works , it produces lots of high voltage , with just two AA ..Thumps up , I like it ...

author: DJPhil
author_rank: Frequent Contributor
timestamp: May 13, 2010, 07:41:42 pm
content: Wow do I have a video for you . . .It's worth the whole 15min or so, but the best bits are near the end.

author: Kiriakos-GR
author_rank: Super Contributor
timestamp: May 13, 2010, 07:57:54 pm
content: This zaper its more fun , you can listen the sound of the spark , see an small firework3KV, and you know that you have done with it .I have all ready wipe out anything with wings , in my office , and last night I had finally a peaceful sleep.I really like to thanks@saturationfor the great idea , of suggesting it .http://shop.ebay.co.uk/jtcorp/m.html?_nkw=New+Electronic+Mosquito&_sacat=0&_odkw=&_osacat=0&bkBtn=&_trksid=p3911.m270.l1313

author: saturation
author_rank: Super Contributor
timestamp: May 14, 2010, 12:08:26 am
content: You are welcome my friend. I used this first in Newfoundland, against flies and my, some explode when you see the sparks! I don't own one now as we have few bugs, but if you ever build the LED light and attract mosquitoes well to it, please let us know.Zapper, another example of life made better by electronicsQuote from: Kiriakos-GR on May 13, 2010, 07:57:54 pm

author: XynxNet
author_rank: Regular Contributor
timestamp: May 14, 2010, 10:47:34 am
content: Well the zapper sounds like fun, but if you really have a mosquito problem the best thing is a fine mesh or if you like poisoning yourself and everyone elsemassive use of chemical agents.I don't know if anyone of you guys has ever been to sweden, but there are some swamp areas where you are literarly attacked by ten to hundred thousands of mosquitos. I expect the zapper to fall rather short under these circumstances.

author: Kiriakos-GR
author_rank: Super Contributor
timestamp: May 14, 2010, 12:27:14 pm
content: Talking about climate, all Greece are famous for the stable and well balanced climate.We get only one small influence from time to time, from weather phenomenons coming from Africa.For example some times we have red dust coming from Africa, that lands on our fresh washed cars ,mixed with rain.So I have no major complains , good weather and low population of insects ..The temperature just got up since last week, from 21 to 27-32 Celsius ,and this is the sign that the Greek summer had just started..

author: Kiriakos-GR
author_rank: Super Contributor
timestamp: May 22, 2010, 01:48:05 am
content: Damn in just a week , my weapon got damaged internally .. very poor spark .. open it up ...and found an damn simple circuitry , one transistor named as SD965 74R ( found that called as Transistor Strobo Flash ) , few diodes measuring 1500Ohm, and few high voltage capacitors , and the one in parallel with the output its rated at 2KW .The circuitry looks to work , it produces right now no more than 100V , and the little transistor heats up fast , at any activation of the little button.Measured the capacitors looks ok , other than one named as 221K 4KV ,that measures like 50pf ..(Fluke 87)I am ready to explode ... because I have not find the true problem.Any ideas ?

author: Mechatrommer
author_rank: Super Contributor
timestamp: May 22, 2010, 05:39:04 am
content: have u checked the secondary coil's voltage in transformer?

author: Kiriakos-GR
author_rank: Super Contributor
timestamp: May 22, 2010, 12:24:05 pm
content: No I did not , because I do not know what I should expect to find , and also I expect that the transformer would have the lowest "failing parts rate" !!

author: Mechatrommer
author_rank: Super Contributor
timestamp: May 22, 2010, 02:41:08 pm
content: Quote from: Kiriakos-GR on May 22, 2010, 12:24:05 pmi used to open dead (elcheapo) AC-DC adapters, 99.99% of them, the transformers are burnt out (the transformer you showed? its look very familiar to me). but i saw your previous post indicating the circuit is still having 100V, so i think the transformer is still working, what i'm afraid of, is the wire laminate that separates each winding is burnt out shorting each other, hence producing lowered output voltage, and its inside the transformer, there is no way to check that unless you un-wind the coil. if you have checked/replaced the other components to their satisfactory specs, then i think its the transformer.btw: i believe, the yellow wires is from the main (battery?), but where are white and blue wires going to?

author: Kiriakos-GR
author_rank: Super Contributor
timestamp: May 22, 2010, 03:04:47 pm
content: The blue and white goes to the metallic net .. ( open circuit )

author: Mechatrommer
author_rank: Super Contributor
timestamp: May 22, 2010, 04:13:12 pm
content: then i think, 100V is way too low to make a "zap!" on any insect passing by. i think it should be in kV range? i dont know, i never own one.

author: Simon
author_rank: Unknown
timestamp: May 22, 2010, 04:58:38 pm
content: When I used to live in Italy I had the same problem, I had mild success with waiting for the damn thing to approach my ear as they always do and then estimate the point at which it was over my cheek and slap myself killing the little pest, it occasionally worked

author: Kiriakos-GR
author_rank: Super Contributor
timestamp: May 22, 2010, 05:52:06 pm
content: Well instead of keep slapping my self , I prefer to find one alternative solution..Found one PDF , possibly the transistor it self ..http://doc.chipfind.ru/pdf/panasonic/2sd965.pdf

author: Kiriakos-GR
author_rank: Super Contributor
timestamp: May 22, 2010, 07:13:25 pm
content: Well I am starting to believe that shafri was right , about suspecting the transformer.I did many tests , re-solder anything , the best of it its just 200V DC output.I have no idea , what transformer is it as specs ( probably an home made design) ,so I just send a message to the seller .Replacement , or refund, or what ever..

author: Kiriakos-GR
author_rank: Super Contributor
timestamp: May 22, 2010, 08:53:27 pm
content: Quote from: shafri on May 22, 2010, 07:44:11 pmDo not spread ideas like those ... you never know how much any one " loves " his wife,or the mother in law..Thanks God I am single ..

author: Kiriakos-GR
author_rank: Super Contributor
timestamp: June 22, 2010, 08:14:06 pm
content: Its time to revive this thread , got my replacement weapon .... from the Korean seller .And in order to measure high voltage .. I got this tool tooAs soon it arrives , I will be fully armed to deal with it .

author: Unknown
author_rank: Unknown
timestamp: June 23, 2010, 05:56:41 am
content: That's some serious probe. That will teach those pesky mosquitoes who's boss.

author: Zero999
author_rank: Super Contributor
timestamp: June 23, 2010, 12:35:35 pm
content: Quote from: Kiriakos-GR on May 13, 2010, 07:08:07 pmThis reminds me of a thread in another forum.Quote from: noobieQuote from: meQuote from: noobieQuote from: me

author: Kiriakos-GR
author_rank: Super Contributor
timestamp: June 23, 2010, 03:50:23 pm
content: Quote from: alm on June 23, 2010, 05:56:41 amYes it is ....But It will take some time to arrive .... as it comes from Canada ..And the seller looks a bit " slow boat " to me .. "Zero feedback"

author: Kiriakos-GR
author_rank: Super Contributor
timestamp: June 26, 2010, 04:23:26 pm
content: Check this out !! My mosquito weapon on video ..

author: qno
author_rank: Frequent Contributor
timestamp: July 04, 2010, 09:02:41 am
content: I once went camping in a little tent. Every morning we would wake up with mosquito bites.One night we had spaghetti with concentrated tomato paste from these little cans.Somehow one of these opened and not completely empty cans ended up in the tent as we discovered the next morning wondering why we where not bitten by mosquitoes that night.Now we eat a lot of pasta's with tomato paste when we are camping.It is not 100% fail safe but worth a try......If you have a hammer, the whole looks like a nail.

author: Kiriakos-GR
author_rank: Super Contributor
timestamp: July 04, 2010, 09:37:59 am
content: There are practical ways to keep mosquitoes away ,but it works both ways .The most known in Greece, are one small plate with cotton on it and lots of vinegar .As long the cotton stays wet , you have nothing to worry about.

author: saturation
author_rank: Super Contributor
timestamp: July 04, 2010, 02:45:50 pm
content: I'm not sure what he designed works. He should show the voltage exists between the halves of the case. The matrix of wires on the tennis racket are the 2 insulated poles of the high voltage circuit, they do not make a connection until you touch both wires. Connecting it to the lock mechanism of the bag shorts the 2 leads. If you connect one lead to the top of the bag, and another to the bottom, it still won't work because those bags have aluminum hinges, so the top and bottom case are electrically connected.Quote from: Kiriakos-GR on June 26, 2010, 04:23:26 pm

author: Kiriakos-GR
author_rank: Super Contributor
timestamp: July 04, 2010, 07:59:25 pm
content: Quote from: saturation on July 04, 2010, 02:45:50 pmYou got lots steps aheadThe only thing that matters are the part of the anti-mosquitoes weapon

author: Kiriakos-GR
author_rank: Super Contributor
timestamp: August 17, 2010, 03:46:16 pm
content: Now I can verify it .. 3.840 VoltsThe tool ...https://www.eevblog.com/forum/index.php?topic=737.0