The circuits and designs of the boards are popular in metal scavengers. How to get a self-producing metal swindler to look for gold? Possible problems when folded

You can buy it for about 100–300 dollars. The price of metal detectors is highly correlated with their detection depth; a non-skin metal detector can “pick up” coins at a depth of 15 cm. However, the performance of a metal detector also strongly indicates the detection of the type of metals interface, fashionable metal pranksters are often equipped with a display for manual roboti.

This article will look at the butt of a hard-working metal slayer called Pirat, which he assembled with his own hands. The device is designed to catch coins under the ground at a depth of 20 cm. As for great objects, it is entirely possible to work at a depth of 150 cm.

Video of a robot with a metal slayer:

This is the name of this metal joke, having been separated through those that are pulsed, meaning the designation of the first two letters (PI-impulse). Well, RA-T sounds like the word radioskot - that’s the name of the retailer’s website, where it was created and published. According to the author, the Pirate is very simple and easy to learn in order to learn some basic skills in working with electronics.

The only disadvantage of such a device is that it does not have a discriminator, so it cannot recognize the color of metals. It’s also impossible to work with it on the plots clogged with various metals.

Materials and tools for collection:
- microcircuit KR1006ВІ1 (or its overseas analogue NE555) - it will contain a transmitting device;
- transistor IRF740;
- K157UD2 microcircuit and BC547 transistor (they are used to collect a primary voltage);
- Wire PEV 0.5 (for winding the coil);
- NPN type transistors;
- materials for the casework;
- insulating stitch;
- soldering iron, sharps, other tools.

Other radio components can be added to the diagram.

You also need to know the required plastic box for mounting the electronic circuits. You will also need a plastic pipe for the valve rod, on which the coil is attached.

The process of folding a metal frame:

Croc first. We create a hand-made board
The most difficult part of the device is, first of all, electronics, so let’s get started with it. We need to earn a fee first. There are a number of board options, depending on the radio elements that are being tested. Є a board for NE555, and a board with transistors. All necessary files for making payment are up to date. You can also find other board options on the Internet.

Croc is different. We install electronic elements on the board
Now the board needs to be soldered, all electronic elements are installed exactly as on the circuit. In the picture shown, you can add capacitors. These capacitors are fusible and have high thermal stability. After all, this metal joke is more stable. This is especially true if you want to spend a lot of time in the spring, if it’s cold outside for an hour.

Krok third. Dzherelo life for the metal-lover
To operate the device, you will need a power supply of 9 to 12 V. It is important that the use of the power supply system be gentle, and therefore, as strong as possible. One battery cannot be worn out for a long time; it is recommended to use 2-3 batteries at a time and connect them in parallel. You can also use one charged battery (it charges the fastest).

Crock of quarters. Let's collect a cat for a metal joker
Due to the fact that this is a pulse metal gun, the accuracy of folding the coil is not so important. The optimal diameter of the frame is 1900-200 mm; a total of 25 turns are required. After the cat is wound up, it is necessary to wrap the animal well with electrical tape for insulation. To increase the depth of the coil, you need to wind it on a mandrel with a diameter of about 260-270 mm, and reduce the number of turns to 21-22. The wire in your vikorist has a diameter of 0.5 mm.

After the coil is wound, it needs to be placed on a rigid body, not on any metal. Here you need to think a little and look for a body that is consistent in size. This is required to protect the cat from impacts during operation of the device.

The pins from the coil are soldered to a rich core, with a diameter of about 0.5-0.75 mm. Best of all, if there are two, call each other.

Krok five. Nalashtovoemo metal joker
When folded exactly behind the circuit, there is no need to adjust the metal gun, it provides maximum sensitivity. To fine-tune the metal sounder, you need to rotate the variable resistor R13, you need to achieve a rare clatter in the dynamics. If this can only be achieved in the extreme positions of the resistor, then it is necessary to change the value of resistor R12. The replacement resistor is responsible for adjusting the device to normal operation in the middle positions.

Do-it-yourself metal scavenger - as the name itself suggests, such devices are prepared independently and are used for searching for metal objects that are used for special purposes. However, the methods of their implementation are varied and entirely direct from radio electronics.

Metal joker M. Martinyuk

Metal joker behind the scheme of M. Martinyuk (Fig. 1) viconations based on a miniature radio transmission, the prominence of which is modulated by an audio signal [Рл 8/97-30]. The modulator is a low-frequency oscillation generator behind the driven circuit of a symmetrical multivibrator.

The signal from the collector of one of the multivibrator transistors is supplied to the base of the high-frequency generator transistor (VT3). The operating frequency of the generator varies in the frequency range of the UKH-FM radio frequency range (64...108 MHz). Like the inductance coil of the collateral circuit of the vicinity of the TV cable, it looks like a turn with a diameter of 15...25 cm.

Small 1. Principle diagram of M. Martinyuk’s metal-sniper.

If a metal object is brought close to the inductance coil of the collateral circuit, the generation frequency will noticeably change. The closer the object is to the cat, the greater the frequency will be. To register a change in frequency, an original radio frequency radio receiver is used, adjusted to the frequency of the HF generator.

Turn on the system for auto-adjusting the receiving frequency. Due to the absence of a metal object, a slightly buzzing sound signal is received from the buzzer.

If you bring a piece of metal to the inductance coil, the generation frequency will change and the signal intensity will decrease. I’m not sure how it will react to metal or any other explosive-conducting objects.

Metal bomber based on a low-frequency LC generator

In Fig. 2 - 4 shows a circuit of a metal detector with a different principle of operation, based on the vicoristan of a low-frequency LC generator and a bridge frequency change indicator. Poshukova's cat metalloshukacha Vikonan is consistent with fig. 2, 3 (with correction of the number of turns).

Small 2. Poshukova’s cat of the metal-shook.

Small 3. Poshukova’s cat of the metal-shook.

The output signal from the generator goes to the simulator circuit. As a zero-indicator of the bridge of the high-impedance telephone capsule TON-1 or TON-2, which can be replaced with a pointer or other modern vibrating device of the exchanger. The generator operates at frequency f1, for example, 800 Hz.

The place in front of the cob of the robot is balanced to zero by adjusting the capacitor C * of the sound coil circuit. The frequency f2=f1, for which place the balancing will take place, can be calculated from the virus:

For the first time in the telephone capsule the sound is daily. When a metal object is introduced into the field of the sound coil L1, the generation frequency f1 will change, the bridge will be unbalanced, and there will be a slight sound signal in the telephone capsule.

Small 4. Circuit diagram of a metal detector based on the principle of operation, which is grounded on the vicoristan of a low-frequency LC generator.

Bridge diagram of the metal-shrinker

The bridge circuit of a metal sounder with a vibrating sound coil, which changes its inductance when metal objects are close, is shown in Fig. 5. An audio frequency signal from a low-frequency generator is supplied to the site. Potentiometer R1 is used to balance the presence of the sound signal in the telephone capsule.

Small 5. Bridge diagram of the metal-shrinker.

To increase the sensitivity of the circuits and increase the amplitude of the signal from the unbalance of the bridge to the diagonal, low-frequency boosters can be connected. The inductance of the L2 coil is equal to the inductance of the L1 sound coil.

Metal bomber based on reception from the CB range

A metal bomber that operates in conjunction with a mid-range superheterodyne radio receiver can be used using the circuit shown in Fig. 6 [R 10/69-48]. Yak poshukova cat can but vikoristan design, shown in fig. 2.

Small 6. Metal prankster, which works in conjunction with a superheterodyne radio receiver in the CB range.

The device has a high-frequency generator that operates at a frequency of 465 kHz (the intermediate frequency of any AM radio receiver). As a generator, you can use the circuits presented in section 12.

At the output station, the frequency of the HF generator, mixing at the adjacent radio receiver with the intermediate frequency of the signal received by the receiver, leads to the signal being released into the wider frequency range of the audio range. When changing the generation frequency (due to the presence of a metal sound coil), the tone of the sound signal changes in proportion to the number (volume) of the metal object, its type, the nature of the metal (one metal increases the frequency generation, other, like, reduce).

Simple metal joker with two transistors

Small 7. Scheme of a simple metal pump using silicon and field-effect transistors.

The diagram of a simple metal scoop is shown in Fig. 7. The device has a low-frequency LC generator, the frequency of which is based on the inductance of the sound coil L1. Due to the presence of a metal object, the generation frequency changes, which is almost possible with the help of the BF1 telephone capsule. The sensitivity of such schemes is low, because By ear it is difficult to detect small changes in frequency.

Metal shot of small quantities of magnetic material

Metallic metal of small amounts of magnetic material can be traced according to the diagram in Fig. 8. As a sensor for such a vikoristan device, a universal head is used for a tape recorder. To strengthen the weak signals received from the sensor, it is necessary to use a highly sensitive low-frequency booster, the output signal of which is applied to the telephone capsule.

Small 8. Scheme of a metal machine for small quantities of magnetic material.

Metal indicator circuit

Another way to indicate the presence of metal faults in the device is shown in the diagram in Fig. 9. The device combines a high-frequency generator with a sound inductor coil and operates at frequency f1. To indicate the magnitude of the voltage signal, use the simplest high-frequency millivoltmeter.

Small 9. Principle diagram of the metal indicator.

There are connections on diode VD1, transistor VT1, capacitor C1 and microammeters PA1. Between the output of the generator and the input of the high-frequency millivoltmeter there is a quartz resonator. As the generation frequency f1 and the frequency of the quartz resonator f2 are reduced, the arrow will be at zero. The generation frequency will change as a result of introducing a metal object into the field of the sound coil, the arrow will start to heal.

The operating frequencies of such metal tricks are usually in the range of 0.1...2 MHz. To gradually set the generation frequency of this and other devices of similar significance, use a variable-capacity capacitor or a padding capacitor, connected in parallel with the sound coil inductance.

Typical metal scavenger with two generators

In Fig. 10 shows a typical diagram of the widest metal detector. This principle is based on the beat of the frequencies of the reference and sound generators.

Small 10. Scheme of a metal generator with two generators.

Small 11. Principle diagram of a block generator for a metal maker.

Same type of vuzol, zagalny both generators, indications in fig. 11. Generator of Wiconations using the secretive “emnosous three-dot” scheme. In Fig. 10 shows a diagram of the extension. Like the Poshukov cat L1, the design is stagnant, shown in Fig. 2 and 3.

The initial frequencies of the generators may vary but are the same. The output signals from the generators through capacitors C2, SZ (Fig. 10) are fed to the switch, which detects a different frequency. A sound signal is heard through the boost cascade on transistor VT1 to the telephone capsule BF1.

Metal joker based on the principle of visualization of generation frequency

Metal jokers can operate on the principle of looking at the generation frequency. The diagram of such an extension is shown in Fig. 12. When the singing minds are victorious (the frequency of the quartz resonator is the same as the resonant frequency of the colival LC circuit with a sound coil), the strum in the lancus of the emitter of transistor VT1 is minimal.

If the resonant frequency of the LC circuit changes significantly, the generation breaks down, and the readings significantly increase. In parallel, it is recommended to connect a capacitor with a capacity of 1...100 nF to the vibrating device.

Small 12. The metal gun circuit operates on the principle of disrupting the generation frequency.

Metal detectors for searching for other objects

Metal searchers, intended for searching for small metal objects in everyday life, can be selected in Fig. 13 - 15 schemes.

Such metal detectors also operate on the principle of direct generation: the generator, which includes a sound inductor coil, operates in a critical mode.

The operating mode of the generator is set by adjusted elements (potentiometers) so that the smallest change in the minds of its robot, for example, changing the inductance of the sound coil, will lead to a loud noise. To indicate the presence/absence of generation, light-emitting diode indicators of the level (presence) of the alternating voltage are used.

Inductance coils L1 and L2 in the circuit in Fig. 13 places, obviously, 50 and 80 turns of a dart with a diameter of 0.7...0.75 mm. The coils are wound on a 600NN ferite core with a diameter of 10 mm and a depth of 100... 140 mm. The operating frequency of the generator is close to 150 kHz.

Small 13. Circuit of a simple metal joker with three transistors.

Small 14. Scheme of a simple metal detector using four transistors with a light indication.

Inductance coils L1 and L2 of different circuits (Fig. 14), consistent with the FRN patent (No. 2027408, 1974), may be 120 and 45 turns, identically, with a core diameter of 0.3 mm [ R 7/80-61]. Vicoristanium ferite core 400NN or 600NN with a diameter of 8 mm and a depth of 120 mm.

Pobutovian joker to metal

Pobutovy metal detector (BIM) (Fig. 15), which was previously produced by the Radioprilad plant (Moscow), allows you to detect small metal objects at a distance of up to 45 mm. The winding data of this inductance coil is unknown, but when repeating the circuits, you can focus on the data that can be used for adjustments of a similar value (Fig. 13 and 14).

Small 15. Scheme of a metal joker.

Literature: Shustov M.A. Practical circuitry (Book 1), 2003

It was divided on the basis of the already known Terminator Pro device. Its main advantage is clear discrimination, as well as low level of discrimination. Such a built-in device will not be expensive, but can be used on all types of soils.

I will attach the short characteristics axis
The principle behind the robotic metal trick is pulse-balanced.
The operating frequency should be set to 8-15 kHz.

As for the discrimination mode, then two-tone voice acting is used. When a device leak is detected, a low signal is generated, and if the color metal is removed, the tone will be high.

The device is powered by 9-12V.

It is also possible to adjust sensitivity and manually adjust the sensitivity to the ground.

Well, now about the brand, about the clay revealed by the metal slayer. The device is designed to display coins with a diameter of 25 mm at a distance of 35 cm across. A gold heel can be seen at a distance of 30 cm. A helmet can be seen at a distance of approximately 1 meter. The maximum depth shown is 150 cm. If you are aware, then without sound it is about 35 mA.

Materials and tools for collection:
- Minidrel (the author has a self-propelled motor);
- Wire for winding the coil;
- several live shielding cables;
- soldering iron with solder;
- Materials for preparing the body;
- drukova board;
- All necessary radio components and their ratings can be seen in the photo diagrams.

The process of preparing a metal scraper:

Croc first. Prepared payment
The board is prepared by etching process. Then you can drill the openings, the diameter of which becomes 0.8 mm. For these purposes, the author uses a small motor with a drill bit installed.

Croc is different. Pay by fold
Folding must be started by soldering the jumper. After this, you can install panels under the microcircuits and solder in other elements. It is very important to have a clear tester that can measure the capacitance of capacitors. If in the application there are two new channels of amplification, then the amplification along them may be closer to the same value, but it will be the same. On both channels of one cascade, the same readings are displayed when the tester is active.

You can see what the already assembled diagram looks like in the photo. The author did not install the battery, which means the level of discharge of the battery.

After collecting the board, you need to check it with a tester. It is necessary to connect it to life and check all strategically important inputs and outputs. Through the tavern it appears as in the diagram.

Krok third. Let's pick up a cat
The DD sensor is selected on the same principle as for all similar balancers. The coil that transmits is designated by the letters TX, and by the letters RX. All you need to do is make 30 turns with a double dart. The wire is vicorized with enamel with a diameter of 0.4 mm. Both the receiving and transmitting coils are formed with double wires, resulting in the output of several particles. Next, using a tester, you need to measure the arms of the windings and connect the tip of one arm to the end of the other, as a result, the middle winding of the coil is established.

To fix the coil after winding, you need to wrap it well with threads, and then apply varnish. After the varnish dries, wrap the cats with electrical tape.

In order for the animal to work on a screen made of foil, between the tip and the end it is necessary to create a gap of approximately 1 mm in order to avoid the short-circuited turn.

The middle TX module must be connected to the board ground, otherwise the generator will not start. Before the middle RX output, it is required for frequency adjustment. After adjusting the resonance, it needs to be insulated and the primary cat is converted to the original one, without output. If the main coils are missing, then they are connected to the transmitter and adjusted to 100-150 Hz lower, less irritating. The skin needs to be adjusted thoroughly; when adjusting the skin, it is not necessary to use hard metal objects.

To maintain a balance, destroy the cats as you can in the photo. The balance is due within 20-30 mv, but not more than 100 mv.

The operating frequencies of the device range from 7 kHz to 20 kHz. The lower the frequency, the closer the adjustment is, but at a low frequency, discrimination becomes worse. And likewise, the higher the frequency, the better the discrimination, but at the same time there is less depth revealed. The golden mean is a frequency of 10-14 kHz.

To connect the coil, several main shield wires are used. The screen is connected to the body, two darts go to the transmitter and two to the receiver.

This is practically similar to the search for treasures. Some people hate to live far away from the city or river in order to find nuggets in the washed sand. Others don’t know about radio components to know how to make gold from them. And still others prefer to search for expensive metal with the help of a metal detector, rather than waste money in order to buy it. Fortunately, the device is simple to use, and without being a radio amator, you can make it yourself.

The principle of dii

What is a metal joker? This is a device that helps singers to recognize metal under the ground, without direct contact with it. The data that arrives helps identify the discovery and informs about it through an additional sound or visual signal.

The principle of the metal joker

The electromagnetic field, which generates the device, comes into contact with metals, including gold, which causes a disturbance on the surface of the vortex jets. By measuring the electrical conductivity of the metal, it is identified and the data is transmitted by a signal.

Metal detectors can use a variety of parameters, methods of processing the return signal, additional functions and much more. Therefore, first of all, before starting to work, you need to figure out what you want to get out of it.

The standard frequency for metal searchers is 6–20 kHz, but for gold it is cheap, 14–20 kHz or more. Therefore, because gold often crystallizes like tiny nuggets, it requires sensitivity. Since this is possible, it is better to use a rich-frequency sound that is tuned in, so it will be possible to increase the number of objects that it recognizes.

Among all the schemes of metal tricks on the Internet, fakers are advised to choose a device with equal induction, as two coils and a tight electronic circuit hang around the head. There is also great interest in developing circuits that use the principle of receiving and transmitting robots, which operate at high frequencies, around 20 kHz, which allows the separation of colored metals from ferrous ones.

Zagalni parameters

A variety of technical methods can be used to design a metal machine. There is a lot to be found in the minds that have exploited wines. Therefore, statements about those that can be used must be defined as clearly as possible. You can see the following parameters on the device:

• sensitivity - a characteristic that initially determines how many different objects a detector can detect;
• vibrancy - the ability to select metals and respond to specific ones;
• Resistance to transmission - the product does not respond to third-party radio signals from radio stations, cars, discharges and others;
• energy saving - how long the device lasts and how long the used battery or battery lasts;
• penetrating structure - depth, where the tool can recognize metal;
• I will adjust the dimensions;
• The size of the zone is supposed to be the area where the attachment is consumed without changing its placement.

Separate building is the main parameter, which also means storage. The output of the device is one or two signals, and there are more authorities, which signify the object of this place of worship. For example, by lowering the frequency of the generator, it is possible to increase the zone of sound and penetration, or lose sensitivity, and increase mobility through increasing the size of the coil.

Scheme of a simple metal trick

The peculiarity of the design of the metal gun lies in the fact that all the parameters are changed in a complex or closely lie at the very frequency of the coil. Thus, this characteristic is present in the design of the device. Based on frequency, metal jokers are divided into the following:

• ultra-low frequencies: frequency up to several hundred hertz, low mobility, high energy consumption, foldable design and signal processing;
• low-frequency: hundreds, thousands of Hz, sensitivity is low, variability is high, the design is simple, penetration depends on tension - from 1 to 4 m, mobile;
• advanced frequencies: tens of kHz, simple design, penetration up to 1.5 m, poor fastness, discrimination of the same, good sensitivity;
• high frequencies: radio frequencies, typical “gold”, discrimination is noticeable, penetration is small, up to 80 cm, low retention, other parameters are bad.

The design will fit

An accessory that does not require absolutely any knowledge of radio engineering can be assembled with your own hands, using: a calculator, a radio, a box with a lid made of plastic or cardboard, double-sided tape. The calculator must be as cheap as possible in order to serve as the basis for the radio transcoding, and the device must not compromise its stability until the transcoding occurs.

Do-it-yourself metal prankster, instructions:

• We melt the box and form a book out of it.
• We lock the calculator and attach it to the box, and the rest – to the lid.
• Turn on the receiver and listen for a clear area in the AM range.
• Turn on the calculator: the receiver is responsible for producing a sound that is adjusted to maximum volume.
• As I’m drowning, I’m dying, the docks won’t show up.
• Fold the lid so that the tone is clear. In this position, the magnetic vector of the first impulses will be perpendicular to the axis of the magnetic antenna rod.
• We fix the cap.

Thus, it is easy to pick up a simple device, but in order to remove more data, you already need knowledge and skills in radio electronics. On the Internet you can find a variety of schemes.

Apparently, the most serious and respectable citizens, when they hear the word “treasure”, feel a slight compliment. We literally talk about treasures, of which our land is immeasurably rich.

How can you look under the ground so you can know for sure where to dig?

Professional pranksters cash in on expensive possessions, the purchase of which can be paid off after one distant discovery. Archaeologists, civil servants, geologists, members of search associations - profit from technology, given organization, and they work.

What about the pranksters of the beginnings of treasures on a limited budget? You can make metal crafts at home with your own hands.

To understand the subject, let’s look at the design and the principle of operation

Popular metal tricksters work against the power of electromagnetic induction. Main components:

• transmission - electromagnetic generator
• transmitting coil, receiving coil (in some models the coils are combined for compactness)
• Priymach electromagnetic kolivan
• decoder that sees the red signal from the dark body
• signaling device (indicator).

The generator, with the help of a transmission coil, creates an electromagnetic field (EMF) around it with the specified characteristics. The receiver scans the field and aligns the field displays with the standard ones. If there are no changes, the scheme does not expect anything.

• When some kind of conductor (some kind of metal) enters the zone of the active field, the basic EMF is directed at the new Foucault stream. These vortex jets create the electromagnetic field of an object. The receiver detects the activation of the base EMF and gives a signal to the indicator (sound or visual warning).
• Since the object being investigated is not metal, but has ferromagnetic power, it screens the base EMF, and also causes confusion.

Important! Pomilkov’s idea is that the soil in which the searches are carried out is not electrically conductive.

Not so. Golovne, so that the electromagnetic or ferromagnetic powers of the middle and objects are considered to be different from one another.

Then, on the basis of the characteristic characteristics of the EMF, formed by the core of the search, a field of surrounding objects can be seen.

Different types of metal detectors

Understanding the features of different circuits will help you select a ready-made detector. If you want to collect metal detectors for coins with your own hands, you do not need to install a detector for pipes or fittings in concrete.

It’s best to know what the tool is for, as the universal metal scrapers have a high quality both when purchased and when assembled on your own. Moreover, the high-profile attachment is compact and lightweight.

Basic parameters

1. I'll look for Glibin. This means penetrating properties for standard soils: below this level the cat is not responsive to artifacts.
2. The area is covered: as soon as it’s wide, then in less than an hour it’s time to “clean up.” It’s true that your selectivity and sensitivity are decreasing.
3. Vibrancy: seeing from many objects of an unnecessary object. For example, when looking for gold jewelry on the beach, your tool does not react to steel hairpins or coins.
4. Sensitivity: the better it is, the better it is to know other things. The truth is that the cat reacts to the variety of smudges, such as flowers or hairpins.
5. Overstepping predation. The detector sensor is affected by all third-party factors: thunderstorms, power lines, mobile phones, etc. It is necessary to filter them.
6. Autonomy: not wasting energy, but recharging life elements.
7. Discrimination – the issue of dividing artifacts into kshtalt. This is the parameter the report focuses on.