I opened the piezo buzzer this morning and found no circuit just a 12v piezo transducer…By the way it doesn't sound like "buzzing" but like a "tweeeeeet" ing soung…can I use it? The intensity of a sound wave decreases with increasing distance from the source (inverse square law). Loud or high-pitched noises can cross the threshold of pain, or the point at which a sound is painful.Here's how some everyday sounds compare to the LRAD: Hi, it may be possible by upgrading the coil and the piezo to handle higher watts and by using a radar kind of transmitter to focus the waves towards the target. The best way to create a homemade microwave weapon is with an old microwave. The U.S. has looked into similar nonlethal weapons. When I connect the base the base voltage falls to zero. At a minimum, you only need to know two frequencies: muscle and skin to count as "liquifying the target". Can an LRAD be used as a weapon? Thank You for your time Stan, Yes installing the receiver/transmitter in series can increase the range…the frequency will be in the hearing range of humans and will be sharp and loud, obstruction will reduce its efficacy, Hi, Thank you for your plans sonic_devastator Please send Trans-core size of item1, Diameter and number far wire for use1000 uh. Hi sir! I am also the founder of the website: https://www.homemade-circuits.com/, where I love sharing my innovative circuit ideas and tutorials. A fourth method is to stop the sound from being generated by the threat. and if yes, what value? Sonic weapons While the idea of a silent sonic weapon sounds like something out of James Bond, Inspector Gadget or the reject pile of DARPA, the idea of using sound as a weapon … We use cookies to ensure that we give you the best experience on our website. sorry, presently I do not have it, will update it whenever I happen to find it. Which one do I choose? I know from my Radar days in the military that the shapes of the tubes are critical. What kind of sound are you getting presently? The proposed ultrasonic weapon circuit may be understood as follows: Basically both the ICs are configured as astable multivibrators, but the one at the left is used as a slow rising and falling ramp generator or triangle wave generator. you help me a lot to understand the circuit! This is to use it to chase away rats (and the occasional dog) which come in from the fields, so the frequency should also be above the human threshold of say 17kHz. ", The U.S. and its allies have purchased and deployed the Long Range Acoustic Device, or LRAD for use in riot control situations. Hii, Will this circuit work with 35Khz oscillator?Thanks. Could a Chinese Space Junk Laser Also Be a Weapon? just in case there is no transistor like that in our place…. The “sonic gun” apparently uses infrasound to disperse crowds, rioters. Unleash the Log With These Wood Bench Builds, NASA’s Ingenuity Helicopter Aces its First Flight, The Best Electric and Gas Mowers for Any Yard, These 2020 Cannondale E-Bikes Are on Sale, This content is created and maintained by a third party, and imported onto this page to help users provide their email addresses. The panel recommended the weapon be turned into practical equipment “as soon as possible.”. Your assistance will be much appreciated. No single ultrasonic tone would do this, but as with musical combination tones, combining more than one can create audible byproduct sounds, including by accident. NICE! Your earnest attention and reply would be highly appreciated thanks Christian. Created with WeVideo Video Editor (http://www.wevideo.com). This amplified current is further fed to a couple of inductors which transform the high current into high voltage frequency suitable for driving high impact piezo transducers or buzzer elements. 4. The piezo will need a special inductor and the piezo will need to be mounted or fixed over a specially design plastic enclosure, for generating a loud noise. A sonic boom that causes damage has to be produced by displacing a very large volume of air. Double the distance, d and sound pressure (dB) drops to half its intensity. Sonic and ultrasonic weapons (USW) are weapons of various types that use sound to injure, incapacitate, or kill an opponent. This powerful sonic deterrent can be triggered by sensors, or integrated with an existing home security system (see our Radio Control and System Interfacing for information on remote control and examples of available addons like panic alarms, shockers, and other deterrents that can be interfaced to this system) Also, would the MJE182 be a good replacement for the D40D5 transistor? The devices have attracted controversy on the basis of human rights and discrimination concerns. The whole unit must be installed inside a plastic enclosure made by fabricating plastic pipes in such away that it resembles a pistol kind of … Can I replace the transistors with bc547? And sound a bit weak what can i do? I've wanted to model a not-noisemarine squad with not-sonic weapons for a while, and I keep an eye out for interesting weapons that wouldn't easily be mistaken for anything else in the codex. For example, one occurs at 19 Hz at relatively safe sound levels (< 100 dB). S4 is the push to ON switch used for triggering the circuit into operation. thank you so much for this site Mike, Sorry Mike, we don’t sell any of the circuits in this website, nor do we know regarding any other source, dear sir your long range USW, what distance would you think. Unanswered: What are the ultimate weapons for the Knights of the Round Table? The new weapon, developed in concert with Chinese law enforcement and military authorities, would likely be issued to the People's Armed Police, a large paramilitary police force that serves Beijing, as well as the People's Liberation Army. 1. The volume from the Piezo is rather weak but I can adjust the slow freq. Electronic weapons are used to torture and murder people. the secondary? On the R/H 555 PIN 3 the frequency is 11-17 kHz & switches on/off as per the timing on L/H IC PIN 3 signal. Let’s go over some of them and see how they work. We may earn commission if you buy from a link. Do you have email or whatsapp? The above integration results in an high frequency sweeping voltage at pin#3 of the right hand IC which is fed to the transistor current amplifier stage consisting of the power transistor  D40D5 or any other similar NPN equivalent. it's a piezo buzzer inductor….or 1000 turns of 36SWG wire wound over a ferrite core. The South China Morning Post, reporting on the weapon, says it has no moving parts. All the best Jokar, Hi, I have updated the information at the end of the post, please check it out, Hi, Thanks for your plans and efforts Do you have another powerful plan or Does it have a strong amplifier for increases the effective interval Transmission core size and wire diameter 1000 uh I am waiting your reply. The Mosquito or Mosquito alarm is a machine used to deter loitering by emitting sound at high frequency. Trishopta, please use a 10 Ohm 3 watt or 5 watt wirewound resistor, 1/4 watt will burn quickly. Should have it soon and hopefully this will correct the volume problem. P1 is for correcting the desired sweep speeds. The Chinese scientists claim the weapon, developed by the Chinese Academy of Sciences’ Technical Institute of Physics and Chemistry, uses “focused waves of low frequency sound” to cause “extreme discomfort, with vibrations in the eardrums, eyeballs, stomach, liver, and brain”. yes identically rated separate inductors will also work in place of audio trafos….piezo could be a 27mm 2-contact piezo element, see example in this article, https://homemade-circuits.com/2011/12/how-to-make-simple-piezo-buzzer-circuit.html. Speculation soon arose that a high-frequency sonic weapon was to blame. This leaves the horrifying prospect that the brain are still intact but the target's body is liquifying. , buzzer will not work here, you will need to connect only the piezo element without in associated circuit.ask for 27mm piezo element. So please use pin3 of the IC to drive the 2N2222. What specific inductor do I need? The left 555 PIN 2 & 6 feeding the base of 2N2222 does not switch the transistor. make sure they are capable of handling upto 500mA current, JC, I WILL LIKE U TO SHARE IDEAS WITH US ABOUT SELF DEFENCE TOOLS THAT WILL BE LEGAL TO CARRY AROUND OR KEEP AT HOME IN THIS UNSAVE WORLD.THANKS. hello if someone reads this I hope you can help me, I came here to seek help I want to make a homemade flamethrower but not a fucking water pistol with alcohol if not a real one that shoots fire far, actually I'm looking for it to impress my friends and apart from being cheap to make any ideas? A battery pack made from chargeable Ni-Cd cells suits good enough for this ultrasonic weapon application. Muscle alone will just make the target fallover. The fact is that scientists developed this technology into reality at least sixty to seventy years ago and started experiments with unwitting people. The inductor is 1000 micro Henrys right? STOPEG STOP ELECTRONIC WEAPONS AND GANG STALKING. Dear Stan, the circuit will produce a sharp penetrating noise which will cause a painful irritation to the ears. The above design could be effectively used for remote long distance control by configuring it with a pair of RF FM transmitter and receiver circuit as shown below: I am an electronic engineer (dipIETE ), hobbyist, inventor, schematic/PCB designer, manufacturer. When I connect the base to IC PIN 3 which output a 1 – 4.5Hz square wave signal then the transistor will switch on & off as per the base signal. Making gun from circuit map is a difficult for me, DO YOU KNOW WEBSITE THAT SELL KIND OF USW? 2. on P2. My idea is to fluff them up as a destroyer squad using radiological weapons, and I think the volkite calivers would make very passable rad-weapons. The transistor is not faulty as I have manually switched it. What would be the amplitde across 'CE' of outut? How we test gear. I have checked the CCT and Continuity between components & everything seems to be OK. Caliburn is a talking weapon used by Sonic the Hedgehog throughout most of the game Sonic and the Black Knight.He is voiced by Casey Robertson in the English version and by Hiroaki Hirata in the Japanese version. use only the outer and inner areas, leave the central small area, see example below: https://homemade-circuits.com/2012/04/simplest-piezo-driver-circuit-explained.html, you will then need stick the piezo on a plastic base, Sorry for disturbing you again..Can I use 3-point piezo?What I mean in audio transformer is the voltage and current..Thanks…, And how about the audio transformer rating? The weapon uses sound to disperse crowds, causing discomfort to individuals until they leave the area. The new “sonic gun” was developed as a nonlethal weapon system for use by police and law enforcement as an alternative to lethal weapons. By Lynne Peskoe-Yang A simple version can be witnessed below which incorporates a couple IC 555s for the intended actions. good Morning…can i use any piezo transducer? I have tried different values of resistors, but no luck. You would have to use a 240 dB source to get the head to resonate destructively. The IC 555 at the right is wired up as a high frequency generator determined by the 1.5k resistor, P2 and the 0.01uF capacitor. to get the desired frequency range. A battery pack made from chargeable Ni-Cd cells suits good enough for this ultrasonic weapon application. alternating between 2 & 3V from the IC. Or to increase the area, the same plot is connected to a stronger amplifier. Some of these weapons have been described as sonic bullets, sonic grenades, sonic mines, or sonic cannons. cause that's what the salesgirl keep asking me!!! Dear Sir If I want to use this circuit to drive a, say 4 or 8 Ohm speaker, can I just use the the BD139 to do so and use a 12V supply? With rising crime in today's society, especially against woman, carrying some sort of effective weapon has become quite imperative. It's great to have a military personnel with me…honored:), Previous: Bicycle Dynamo Battery Charger Circuit, Next: Simple Adjustable Industrial Timer Circuit. There are so many. All the best Jokar. Do you have counterpart here in the Philippines where I can buy the kit? (in case its a transformer) how many volts is the primary? In the English version, he acts like a proper and polite gentleman, which initially clashes with Sonic's easy-going attitude. A whip crack is an example of a small sonic boom and there lies your problem. Thanks! The whole unit must be installed inside a plastic enclosure made by fabricating plastic pipes in such away that it resembles a pistol kind of appearance with S4 positioned at the trigger button position. Unanswered The piezo must be assembled inside a funnel mouth, and whole assembly to be fixed at the tip of the above fabricated gun barrel. You can replace them with any identical high value inductance coil, 3. you can use any similar npn general purpose transistor in place of BC547, ….yes the series inductor with the piezo is rated 1000 microH. Last Updated on November 7, 2019 by Swagatam 80 Comments. Thanks for the reply and the ideas…much appreciated. S1 is for selecting fast or slow sweep effect option, while S3 is the frequency selector switch, to be selected for fixing the optimal frequency range. Sir, P L E A S E .. Regards Jan. Hi Jan, I had referred this diagram from another site, and it seems the left side astable is incorrectly shown with pin6/2 connected with the base of 2N2222. Gang stalking is a method of secret services to eliminate people and is often … It is clear to see that the effect of sonic weapons used in order to impact the human body physiologically and alter the subjects mental state, is of large importance when researching acoustic warfare weapons. I'm talking here about 300m. I wouldn't think that something this small would be more than annoying… Very cool though! Christian, sorry I don’t sell these units from this website, I can only help making the circuits…. In some versions, it is intentionally tuned to be heard primarily by younger people. thank a lot!!! Got it working in the end, I disassembled it and rebuilt it again and managed to get it working.. must have missed something along the way. Also called: Directed Energy Weapons, DEW, people zapper, laser weapon, people burner, electromagnetic weapons, laser weapons. Thanks have a good day swagatam. thanks a lot sir!! U.S. personell at the Embassy in Havana who’ve experienced a rash of symptoms from mysterious Hi, the potentiometers are correctly positioned and varying them will produce the specified outputs. thanks, yes may be it won't cause too much trouble for the intruder but it might certainly help to attract a few folks even from some distance away…. the piezo which am referring to should look like this: 4.bp.blogspot.com/-MlUEEIZ2MDw/T5zHauzOS1I/AAAAAAAABNE/IsnTWGcUfkE/s1600/piezo+transducer+element.png, Can I use a 12v piezo buzzer which looks a lot like encased in black circle thing? LRAD, like the Chinese “sonic gun,” uses sound but in a different way, emitting a loud, high pitched electronic squeal instead of a low frequency throb. which is 8 ohms, the primary or the secondary? If you continue to use this site we will assume that you are happy with it. How to craft everyones ultimate weapons? Hi, out of curiosity, what upgrades would you suggest to increase its effective range? Is there a more powerful design for more space? RELATED: Sound as a Weapon Part 3: Protection from Damaging Sounds. You may be able to find more information about this and similar content at piano.io, One of these Vehicles Could Replace the M2 Bradley, The Army Wants to Replace the TOW Missile, The Latest on Russia's Apocalypse Torpedo, Biden Will Keep Loosened Rules on Land Mines, The Air Force's Hypersonic Weapon Just Failed, The Air Force’s New Eagle Is Called ... Eagle II, Russia May Have a Secret Main Battle Tank, The Marine Corps Is Drastically Reinventing Itself, U.S. Navy photo by Mass Communication Specialist 2nd Class Foster Bamford. Or does it need to be 1k ohm? I have all the components on a bread board and I have a feeling that this is where I've made fault. I will change the values of the voltage divider to pins 2/6: P2 10k Ohm to 2k Ohm, R1.5k to 1k Ohm R3.9k Ohm to 2k Ohm and leave the Capacitor at 0.01uF. Your email address will not be published. OYEKA : 12oyeka@gmail.com. Some sonic weapons are currently in limited use or in research and development by military and police forces. Arrows are important if you decide to build a bow. left or right pot terminal orientations are not important….short the center lead of the pot with either the left or the right terminal…this joint together becomes one lead of the pot…while the other free lead becomes the other lead of the pot. thanks, you make one by winding 8 primary and 1000 secondary over any E type ferrite bobbin/core assemblywire should be 33 SWG or 0.2mm. Yes, the radiator shape is indeed crucial here, to be precise the piezo element needs to be mounted inside a conical mouthpiece for effective radiation towards the intruder and for keeping the noise away from the user. Since you may not be able to increase distance, sound blocking and sound absorption are your standard choices for handling loud sounds. now simply connect one to the positive line and the other to the 10k resistor. How to Dodge the Sonic Weapon Used by Police The LRAD is like a car alarm from hell—and if you aren’t careful, it could permanently damage your hearing. Israel Uses “Skunk” Gun In Attempts To Disperse Palestinian Protesters. Sonic weapons, after all, leave no physical marks – they are perfect for those who wish to remain untraceable. r/homemade_weapons: for homemade weapons. Your eyes will twitch. A neural rape or assault on people’s bodies and brains developed from classified military technology. P2 sets the final frequency to be delivered across the output. I hope this should work. Sorry I do not have anybody in Philippines who can provide you the kits. Please refer to the following article for the details: https://www.homemade-circuits.com/understanding-and-using-piezo/, Good day, many thanks to share this special world of ultrasound, I have one question..can be possible to develop ultrasonic weapon to kill langostas which are affecting African brothers? The supply voltage is 15VDC I have swapped the 555 numerous times with other IC’s, but symptoms are identical. For the two parallel inductors, here we incorporate the primaries of an ordinary radio audio output driver transformers and the series inductor can be any type having the value of around 1000uH. Earlier this month, a panel from the Ministry of Science and Technology met in Beijing and approved the sonic gun for mass production. Some make a focused beam of sound or ultrasound; some make an area field of sound. Hi Swagatam, I need your assistance please. However, an average microwave puts out 1,000-2,000 watts of energy, quite enough for destroying electronics. A great option which can be as effective in such cases yet won't cross dangerous limits can be in the form of a USW or an ultrasonic weapon. But luckily, they are easier to build than … What about replacing the output transistor with a 'N' channel MOSFet. Although don't stand too close or you will be minus 2 feet ! Popular Mechanics participates in various affiliate marketing programs, which means we may get paid commissions on editorially chosen products purchased through our links to retailer sites. A sonic 'boom' depends on the velocity of a projectile through the air - it needs to travel faster than sound. 3. Gear-obsessed editors choose every product we review. How functional is this? Thank you Swagatam, Will you please give me the specs for the special inductor. If you want to upgrade to a more powerful, long range device, it's practically impossible unless you have a physics lab with extensive measuring equipment. Dear Husmukh, yes you can try that, BD139 will work with a 8 ohm speaker at the mentioned frequency. kindly provide model or supplier because the models I found in the internet has 120 P-P volts. Th amplitude would be equal to the supply voltage. Psychotronics is the ability, using extremely low frequency (ELF) waves and other means to manipulate a person emoti BC547 can be used in place of 2907 but for the output transistor you will have to employ a power transistor such as D313, D1315 or TIP31, TIP122 etc. A new weapon invented by Chinese scientists uses low frequency sound waves to cause physical distress, forcing rioters, protesters, or anyone else the wielder wants to vacate the area.
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