» From sites » Specialist »UMRO: Uranium-glass-marble-ring-oscillator (Uranium-glass-marble-ring-oscillator)

UMRO: Uranium-glass-marble-ring-oscillator (Uranium-glass-marble-ring-oscillator)

UMRO: Uranium-glass-marble-ring-oscillator (Uranium-glass-marble-ring-oscillator)



That is what the master called his work. Although, not even he, but a group of students from EDINBURGH HACKLAB who made this thing. The master, in turn, made a replica, and on its basis a little thing in style steampunk, and decided to share detailed manufacturing instructions with us.




Tools and materials:
-Uranium glass ø 20 mm;
UV LED 5 mm 390-395 nm - 7 pcs;
- Transistor 2N7000 DIO - 7 pcs;
- Resistor 300 Ohm - 7 pcs;
- 0.47 uF ceramic capacitor - 7 pcs;
- Resistor 33K (for very fast rotation) or 100K (for very good rotation) or 200K (for very slow rotation) - 7 pcs;
- 9 volt battery;
-Battery clamp;
-Copper wire;
-Heat-shrink tubing;
-Pliers;
-Screwdriver;
-Soldering accessories;
-Nadfiles;
-Knife;
- "Third hand";
-Plywood;
-Engraver;
- Forstner drills 18 mm and 22 mm;
-Wooden toothpicks;
- Coin 20 eurocents;
-Small stick made of wood with a diameter of 5 mm;






Step one: basic concepts, scheme, theory
Uranium glass.

Uranium glass is glass in which uranium, usually in the form of diuranate oxide, is added to the glass mixture before melting. The fraction is usually about 2% by weight of uranium, and its radioactivity has very low alpha radiation. Uranium glass exhibits a very strong fluorescent effect when using ultraviolet light with a wavelength of 360 to 405 nm. The peak is about 395 nm.
(In Russia and the USSR, such glass was called "royal".)

Ring generator:
Wikipedia writes: “Ring generator - electronic "a device consisting of an odd number of inverting stages or digital inverters and serving to generate a sequence of rectangular pulses."

The members of Edinburgh Hacklab who made the UMRO (hereinafter referred to as the Oscillator) changed the sequence of these inverters in such a way that it seems that a ray of light rotates inside the glass marble. These inverters work very fast, so a capacitor and a resistor are needed to reduce the speed. Ceramic capacitors are a little more expensive than resistors, so the master decided to leave the 470 nF capacitor and changed the number of resistors to find the best speed. You can use different capacitors for different speeds: 33 kOhm - very fast rotation up to 200 kOhm - very slow rotation, 100 kOhm average.

Rotation can be either clockwise or counterclockwise. How this is regulated will be described in the next steps.

This circuit is powered by a 9 V battery, but the master also tested 3 AA batteries of 4.5 V. Everything works with this voltage. True, the rotation speed was slightly lower, and the light from the UV LED was weaker. This made it clear that if you install a potentiometer, you can adjust the speed of rotation.











Step Two: Prepare Copper Coils and Rings
The master planned to build several oscillators, so in the description there is an instruction for assembling one UMRO, and there are more details in the photos.

On a stick with a diameter of 5 mm (LED diameter), the master winds a copper wire with a diameter of 0.85 mm. The length of the coil is 10 cm. Then the coil is cut one centimeter. One oscillator needs seven coils.






Now you need to make three rings. Two rings will serve as a frame for glass, their diameter is 19 mm, and one ring will be located on the outer perimeter around the coils, its diameter is 45 mm. These rings can be made in any way, fly, twist, weave patterns, etc.





Step Three: Install Coils
To set the glass and attach seven small coils, the master makes a template from plywood. Drill a blind hole ø 22 mm in plywood, then a blind hole 18 mm and a through 2 mm. There is a hole in the glass. Inserts a toothpick into the hole and centers it in the 2 mm hole in the plywood. Then it places a copper ring on the glass and solders seven coils around the circumference. Turns the glass and solders the second ring.





Step Four: LEDs
Next, check each UV LED before use. Testing can be done using a 9-volt battery and a 300 ohm resistor. If everything is normal, then a UV LED is installed in each coil. The anodes of the LEDs are soldered to the outer copper ring.




Step Five: Transistor Resistor, Capacitor
Next, you need a transistor 2N7000-DIO and bend the left and right legs, as shown in the photo. Now you need to solder the ceramic capacitor to the source and gate of the transistor. Solder a 100 kΩ resistor to the gate, isolate the thermotube connection. 5 cm of wire are soldered to another leg. So you need to prepare seven modules.




Now you need to solder the module leads to the inner ring (see photo and diagram)
Finally, solder a 300 Ohm resistor to the cathode of the LED, and the other end to the drain of the transistor.




Sixth step: direction of rotation
Now you need to continue the installation according to the schemes. The scheme is selected depending on which direction the "rotation" should be. The wizard provided both schemes. Before final assembly, it is best to verify that the circuit is working.










Seventh step: board
If necessary, you can assemble the circuit on the board.








Step Eight: Case
With the final step, the master places the oscillator in a metal case from the old police flashlight. For decor adds electrical components.





5.8
4
4.5

Add a comment

    • smilesmilesxaxaokdontknowyahoonea
      bossscratchfoolyesyes-yesaggressivesecret
      sorrydancedance2dance3pardonhelpdrinks
      stopfriendsgoodgoodgoodwhistleswoontongue
      smokeclappingcraydeclarederisivedon-t_mentiondownload
      heatirefullaugh1mdameetingmoskingnegative
      not_ipopcornpunishreadscarescaressearch
      tauntthank_youthisto_clueumnikacuteagree
      badbeeeblack_eyeblum3blushboastboredom
      censoredpleasantrysecret2threatenvictoryyusun_bespectacled
      shokrespektlolprevedwelcomekrutoyya_za
      ya_dobryihelperne_huliganne_othodifludbanclose
76 comments
Guest Sergey
Maybe I'm blind, BUT where is the video work? Leafed through several times.
If anyone is interested, I found on YouTube either someone from their team, or who repeated this homemade product.

It seems like you need to watch live. The video is not very impressive. Or you need to grind the rims of the LEDs and shove deeper so that the stray purple light is not visible.
P.s. The taste and color of all the markers are different. (C)
Just a toy.
Somewhere I saw this ...
But I did not understand what it is and why?
MTX-90 is far from the only one. There were others, for example, TX2, TX3
There were many different TX, for example, the famous TX4B.You were not talking about TX in general, but specifically about MTX.
Ivan_PokhmelevThe MTX-90 thyratron is far from the only one. There were others, for example, TX2, TX3, etc. I managed to work a little with some of them (other devices replaced them). So, there is evidence that the thyratron TX11G contained a small amount of radioactive nickel. True, on the forum (thanks for the link) they write that they checked, it does not fonit. However, on Wikipedia I read an article saying that this thyratron contains radioactive nickel. This TX11G was used in RID smoke detectors, sort of. I think that this isotope was used in this thyratron to facilitate breakdown (or increase the sensitivity of the thyratron). I saw German spark plugs, and as far as I managed to read German, it was written that they contain an alpha source. I believe that for easier formation of a spark (air ionization).
MTX was, if you do not take all sorts of prototypes, probably only one: MTX-90. But there was nothing radioactive in it.
And about where it was discussed here.
So about IE8 I was wrong, because I thought that one “rabbit” was running around the ring: I didn’t look at how the circuit worked, because it was not drawn humanly. Then it will turn out a bit more difficult, you will need, in addition to the generator, an 8-bit shift register and a binary counter.
Have you still taken the author of this video?
Although Efremov recently allowed himself something like this on the stage of the theater and there was nothing for him. Also saw how he ... drunk played xaxa in one play, the audience was outraged. And he mocked them.
But Pussy Wright was not lucky ... It seems that the soloist has already been released.
"Citizens !!! The revolution is canceled !!! ... Edmundych, bitch, on the" Avgog "he swam away on a pitch !!.".))))
R555
It turned out in the photographs of his wife
As a child, when the photograph was still black and white, he was fond of photomontage (or photomontage?), Glued spiders, dragonflies, etc., onto the glass window, looked like giant monsters against the background of the out-of-the-way landscapes! And to stick a classmate’s head to the picture from the magazine is elementary! And today you can even mount video on computers, and the articulation, facial expressions and the voice of the “sewn head” will be impeccable! Recently I saw how the "GDP" climbed onto the Lenin armored car and carried such a blizzard! xaxa
In addition, he knows how to print on laser discs and plastic bags. This allows you to make interesting souvenirs.
For example, they were going to the anniversary of living together to the godfathers. We collected all the videos and photos with them on the disk and printed a colorful label on it. Designed labels for brandy "Alexander" and wine "Irina" with their photos. We also made a label for champagne "Silver Wedding" with their joint photo. Moreover, = - by all the rules. "Composition" ... "Made on special order specifically for ..." And with "collars and back labels for cognac and champagne)))). All this was printed on glossy paper and glued to the bottles from which they soaked and removed the original labels . (Even glued with stripes!)))) And put it all in a colorful (also specially printed) package.
The souvenir made a splash!
A lot of guests tried to find out where I could order this!)))). At the same time, "guessed how much it costs !!!!"
The very first printer that appeared at my place (which were at work does not apply to the conversation) was a matrix printer.

And I ... And still have. In the basement stands. And it works, by the way ... Only, I hardly use it, of course ... Even recently I found and took 30 tapes to it in the office)))))
I bought some HP, I don’t remember. He dragged him home, plugged it in, tested it, and was in indescribable delight.

Everything as you describe, word for word, I had with the MFP "Canon" ... And the delight ... And then the "shock" from the price of cartridges and their resource ...)))) ...Yes, and such a moment: I was warned that the pre-installed cartridges run out quickly. (But I did not think that it was SO FAST !!!))). But now, those that I will buy in return, they said, it’s already much better ... I bought it (As I remember, it was the fortieth and forty-first)))). Better ... And even significantly ... If the first printed a dozen photos, then these - almost fifty !!! ... Only now, it cost $ 50 !!! ..))))
Then there were long, for a couple of years, “dancing with a tambourine” using syringes and Chinese ink ... Then, on Dino-Direct (Ali was not there then) I bought a universal CISS and crashed it. (I was told that this was not possible. But, having understood the principle of operation of this printer, I still managed to do it. True, I had to invent an adjustable stand for “donors” - the system was very sensitive to the ink level in banks. But this solved the problem “wired cartridges” - the cartridge wasn’t removable, therefore, the printer didn’t tear it away like it was already used. (And Canon, unlike XP, doesn’t just “not recognize” it, but burns out the cartridge that it considers “left.” Here’s such a system counterfeit protection!). There remains the problem of print counters, but also it somehow managed to be solved by manipulating something in the brains of the printer (I don’t remember anymore)))). But here, the problem of disposable print heads cannot be avoided in any way - their resource allowed them to work out a maximum of five to six “ordinary lives” of a cartridge! And that’s it! it needs to be changed according to any ...
While studying the topic, I came to the conclusion that you need to buy a piezojet and most of these headaches will be removed !!! I stepped on the amphibian and bought it! )))
And you, as I understand it, a jet is not the cheapest.

You can say one of the "most expensive")))))). As they wrote then on the off site of Epson, this model was created for those who are not satisfied with the quality of photo printing in the studio! .. There is a huge resolution and the size of the drop is incommensurably miserable. In addition, it is six-color (and not four, like most). But...
Ink (dropsy) is cheap !!! Just recently I bought a hundred milliliters of each color - less than twenty dollars. (This, if you understand, is enough, for about one and a half to two thousand photos of A6 format) ... For a year, or even more, you can forget))). Although we print and not only photos. Daughter is a professional artist. And, although he works as an engineer, he takes part-time jobs for magazines, almanacs, calendars, etc.)))).
CISS also bought and crashed. Now you just need to, from time to time, add ink to the cans, and reset the counters by pressing the button if the printer decides that the ink should already run out))))
But this does not need to be printed at all, never

I remembered one story. About 15 years ago, when the usual (non-digital) photograph was still in use, there were many points of development and printing. Of course, not everyone was engaged in development and printing at home. I once dealt with this business, but it is troublesome and very expensive. Therefore, like most, he gave his films for development and printing to such points. Of course, I had pictures that, let's say, are not for a wide range of people. But, we have a lot of simple, gullible and open people. And they handed everything over there.

My friend told me. His friend, a photographer, worked at this point, I know where he was located (approx. R555). And after work, he and his friends were going to drink beer with him, to have a drink. And usually the photographer took out his special photo album in which he collected copies of interesting (in his opinion, photographs). They watched and discussed them. About 90 percent were occupied by nudists. And once they examined new photos in this album. Suddenly, one of his friends blushed and threw the album to the floor. It turned out that his wife was in the photographs, from her clothes there was only ... a clock. But in an embrace with two men good What happened next, a friend vaguely remembers ... xaxa
R555
And his personal and conf. information too
But this does not need to be printed at all, never! boss
Good evening, Valery!

I read with great interest your detailed answer about inkjet printers.

Perhaps you have the impression that I disdain inkjet printers and praise laser printers. This is not so, or rather not quite so.

The very first printer that appeared at my place (which were at work does not apply to the conversation) was a matrix printer. After some time, I sold it to a friend and bought a jet. And here it all went, as you describe.

Bribed by the relative cheapness and the fact that the cartridges included. At that time (I won’t tell you for a year), information on these printers was scarce (as were the printers themselves). And sellers actively vparivali new product.

I bought some HP, I don’t remember. He dragged him home, plugged it in, tested it, and was indescribable delight. Of course. showed to his relatives, friends and acquaintances. Back then, having an inkjet printer at home (any printer) was rare. There was some financial benefit from him. For example, I printed labels, instructions for my products (home-made products).

But, as they say, the music didn’t play for long ... The cartridges that came with the printer were refilled with ink in a small amount (of course, they forgot to tell me about this in the store. They ran out very quickly. I went to the store to buy new and I was saddened by their price.The first thought I had was that the printer wouldn’t work for me, but I would work for the printer, or rather for the cartridges. xaxa

And then the clogging of the nozzles began during short breaks in work. Soon the printer was completely bent.

I had another inkjet, used, presented. Also did not live long. This is where my negative attitude towards inkjet printers (cheap inkjet printers) comes from.

And you, as I understand it, a jet is not the cheapest. Therefore, it serves for a long time, given that you follow it, spend those. service.

After that, I decided not to get involved with the inkjets anymore, I saved some money and bought a laser. And almost without any maintenance, he actively threshed for 6 years on just two or three cartridges!

I recently bought a Canon LBP-2900 laser. I need a laser printer for my tasks. Someone needs an inkjet. And some, in general, do not need a printer, they print everything at the printing points, which are on every corner, in every gateway. And his personal and conf. information too. xaxa
Yeah. Elpete! Knocked out of my head then ...))))
Once they left for Turkey for two weeks with the whole family. Upon arrival, right away, we left with the godfathers in the forest with tents for another two weeks ...))). Naturally, the printer dried up in a month. Yes, and it so happened that the ink was running out. The regular programmed nozzle flushing did not give a result, but now, I drank the rest of the ink!))). Yes, and I had so many things to do during the holidays that it wasn’t up to ink ... As a result, I was able to get into the printer only six months later! ... I carried it to the basement. Disassembled. flooded my head with a detergent ... something (It seems "Mr. muscle")))). The tubes, from cartridges to the head, were simply rinsed with water from syringes ....
And then I thought that I would have to buy a new printer ...
But no !!! Alive, smoking room! .... Plows, like new ...
I don’t believe something about the durability of inkjets.

Thanks to my family’s special passion for paper photos, I had to delve into this topic ... I will explain below.
(Sorry for the many bukaf! Supplements, and rebuttals (reasonable) are welcome ...
Stryunik strife is different! Most of them are made according to the principle: “The device is on you for the price of the cartridges already in it! )))
These devices are the simplest! They often do not have a print head (It is disposable and is located on the cartridge). Even if she is, her resource is small enough. Because these devices use the so-called thermostatic principle.
(Briefly: A drop of ink warms up, boils, and so is thrown onto the paper). More expensive such devices have a head and ink is heated by special thermistors (for some reason they are called there that way)))).At very cheap - they use ink with a certain resistance, and they are heated by directly supplying current to them! ...
Hence their properties - extremely high demands on the "grade" and quality of ink and the high price of these very inks.
Moreover, when dried, this ink can no longer be dissolved! (Head kayuk!)))). This same kayuk can come to her even with a sudden blackout of nozzles! (Hence the fact that they began to place this head on cartridges, making it disposable! And from here - the high price of these very cartridges !!!
Of course, Chinese friends responded by selling ink syringes and instructions on where to drill holes!)))) ... But this is far from a panacea. Because even fake inks of this kind are expensive! And the head is still DISPOSABLE ... (Tested on “Canon.” Two or three refills, and the head, in any case, starts to “strip” !!! And nobody canceled the drying of ink either! Especially since washing such an not dried up yet, the head from the accumulated "slag" is simply impossible.
But there is another type of inkjet - piezo. In it, the ink is no longer warming. They are pushed, figuratively speaking, by a piston!))). A head of this type, as you know, is much more expensive! And if at the same time the device also has a high resolution .... In addition, it is also necessary to deliver ink to the head with a special pump. Accordingly, the price of the device is still rising !!!
For example, I bought my old Epson TX-650 at the time (about 10 years ago) for an amount equal to about $ 400! And now devices of this class cost about the same! (I was recently interested when I thought that I would have to change it).
... But, on the other hand, ink! .... As you understand, with this method of printing - it's just paint! After all, nothing is important there, except for color. (Neither thermal expansion, nor electrical resistance, nor magnetic properties). Therefore, such printers work on "dropsy" (water-soluble ink). Drying is not so scary for them - when one nozzle dries, the head does not fail, as in a thermo-jet, where boiling ink simply tears a clogged nozzle. If the nozzle does not dry "tightly", but simply dries, then for some time fresh ink simply dissolves this cork! (It is written in the instructions: "If several pumping cycles have not yielded results - wait a few hours and repeat" ..... And in the thermo-jet it has already “sintered” and will never dissolve!)))) In especially difficult cases ( a simple apparatus for six months or more) you still have to disassemble the apparatus and soak the head itself directly. But such cases are more likely treated than not))))
Incidentally, I have now discovered 15 pieces of "625" magazines in my stocks; they also have glossy paper that is suitable.
I recalled how you laughed at me not so long ago that, apart from the magazine Young Technician, I haven’t read anything else in my life xaxa It turns out that I also read Playboy, 625, as well as TM. Technique of Cinema and Television ...... the list is long, until the morning to list ...

And you quoted me out of place. No, well, of course, I am pleased to be quoted. But I don’t read shitty advertisements, we have a large box next to the mailboxes and we immediately throw all these leaflets there. Especially from the store I do not bring. The cleaning lady swears at the advertisers, a lot of garbage from them. I recently said, this was not the case in Kolyma xaxa I did not quite understand what it was about ...
Valery, Something I can not believe about the durability of inkjets. Personally, I had them 2. Weeks 2 stand idle and the nozzles are clogged. Recently, they gave me an unusable MFP with the hope that I would fix it and use it. Kakh, only the guests left, I immediately began to disassemble it for parts, did not even turn on this shit xaxa

And before that, my brother also gave me a non-working inkjet. Thought I would fix it and use it. He waited until he left, turned it on and immediately decided to let it go to spare parts. And I was not mistaken. Only after a complete disassembly did I understand. that would have been wasted time (gear damage). The most interesting thing is how there was a package of chewing gum. Institute nephew graduated 10 years ago xaxa

And the laser honestly worked for 6 years. I recently bought a good laser as an acquaintance for just 2600 rubles. In the kit, the zero cartridge is not chip-like. I can refill. In addition, the cartridge lasts for a long time. I sometimes need to make printed circuit boards. You can, of course, order the Chinese, but I don’t think so. that they will be contacted due to 5-10 boards.
Valery
Also ... well, how is this connector ...
LPT? Com? scratch
I have a working scanner lying around ... But it's old. Still ... well, how is this connector ... Well, which is "dyuyesbishny" ... (Knocked out of my head "...
And the "cartridge" ink jet is absolutely serviceable, but unnecessary .. (By the way, the MFP! That is, it also has a scanner))) I still can’t make it into pieces of iron. (I dismantled one recently).
R555
Korolev, do you have anything else
I ask you to understand the essence of what I said:
I have my own printer to comrade gave, to me already unnecessarily, and he needs it![b] [/ b]
yes
But I gave away the laser for free ... Since the daughter graduated from the institute, he has become unnecessary. You can’t print a photo on it. And, if I occasionally need something text, then there is enough inkjet ...
My poor TX-650 will soon be ten years old, as it plows ... Run wild ... I have reset the diapers four times already, if not more (Instead of the diaper itself, of course, a bottle under the table has long been))) ... Branded ink and never seen ... Only Korean. CISS once crashed ... And nothing ... Head - like new .. And the mechanics pah-pah ...
Yes-ah .. Now they do not do such)))))
R555
flyers shit won't do. Playboy only
Firstly, the quality is excellent, not worse, or even better than in your old magazines, and secondly, there are not only A4, but also stitched notebooks. I quote you:
You wanted to show yourself smart, all-knowing, but it turned out the other way around. For the future, keep in mind
xaxa
And my women are obsessed with paper photos. So, my six-color Epson Photo rumbles like a Kalashnikov assault rifle.))) ... I’ve already prepared 100 grams for the New Year ... I mean, ink ... One hundred grams of each color ...)))
(If anyone does not know - this is very good!)))))
End of the world! They give out laser printers, scanners (they recently gave it to a friend, they told you it’s useful, but we don’t xaxa ))) Korolev, but do you have anything else with which you are ready to leave on the eve of the New Year?
Firstly, I don’t buy such magazines, not a boy, but I have a lot of these left, precisely because I splashed boards in batches. Then my laser was covered (after 6 years of hard work). The new one did not dare to buy it. And recently I bought a used one, but in excellent condition and a zero cartridge in the kit.

Secondly, what you offer is that they have a small format. And I need A4, even if the scarf is small. The thing is. that for a high-quality transfer of the image to the board, I usually print the same picture 2-3 times. Stavlou with felt-tip pen marks on the sheet ... in short, you need A4. flyers shit won't do. Playboy only clapping xaxa

Thirdly. No one will agree that he (she) is pushed into the printer sheets from the magazine, they think that fool
It turns out, I doomkopf?
I gave it a laser, the matrix is ​​still waiting for its new owner! What happens there - you know better! xaxa
R555
So, you need to print on glossy paper, like the aforementioned magazine.
At the box office of a super (hyper) market, piles of flyers on excellent glossy paper! And buy the magazines you mentioned ... nea
We also have a print from a flash drive in each gateway. And I imagined how I would approach the young lady, get a flash drive and sheets from the Playboy magazine and ask them to print a picture of the tracks of the printed circuit board xaxa xaxa xaxa

I explain who is not a radio amateur. There is such a technology to make very high-quality printed circuit boards at home.It is called laser-ironing. So, you need to print on glossy paper, like the aforementioned magazine.

Interesting. What will she do?
And which printer did you give him, dot matrix? xaxa
And I recently bought a laser. It turns out, I doomkopf? xaxa
Valery
Probably the right typing machine ???
I gave my printer to a friend, I’m already unnecessarily, but he needs it! We print from a flash drive on every corner. So my computers are for tyrnet only! You can call it "computer"! xaxa
Try to turn on the music on your computer and at the same time the CALCULATOR program and count something.
Imagine, this is possible xaxa The same thing in the device, the processor is not weak there, it also draws color graphics ...

In my opinion, I clearly explained now. popcorn boss

Yes. Now it is intelligible. Now I realized that you need to call a computer not a computer, but a player. Thanks...
P.S. And how many morons call it a computer !!! And this, after all, is just a modern player, on which you can also run other programs.
By the way, and those computers on which the music is not included, how to call correctly ??? And then at my work, for example, I don’t even have speakers ... Probably the right typing machine ???
Author
I forgot to insert the video, but Dmitry fixed it. So, the video shows that 4 LEDs are working simultaneously, 3 are resting.
Author
Similarly, the vidos forgot to insert
About one resistor - it’s absolutely true, as well as about the optimality of using the K561 TL1 specifically for battery power: due to the cool switching characteristic, the generator on this chip will consume less than on ordinary logic (LE5, LA7, etc.).
But the direct connection of the LEDs to the IE8 outputs is a dubious matter: it will work for some time, but without a guarantee. According to the documentation, his maximum output current is 0.5 mA. For such a little thing like “made-showed-forgotten” - it will do, but for something serious - no.
Regarding the characteristics of SOEKS 01M. On the their site it is written about him:
"Range of indications of the level of radioactive background, µSv / h up to 1,000."
Convert to more traditional units. Yes, I know that there are small assumptions, but for our purposes they do not play a role. 1 mSv / h approximately corresponds to 100 mR / h, that is, the parameters of a conventional SBM20.
I also drew attention to the so-called ring generator. Because this is probably the only type of generator that has never been assembled yet. Collected all sorts. And on a single-junction transistor and on a tunnel diode and on a blinking LED .......... and even on a relay! But there is none. As he writes Ivan_Pokhmelev could be assembled on K561IE8. That's right, only from the output No. 7 of the decoder you need to throw the wiring to the input R of the counter so that it counts to six, and not to 10. LEDs 6 (I write from memory). But that's not all. The keys in FIG are not needed. I worked with this chip, normally it pulls the LEDs, unless, of course, you squeeze 20 mA of output. And that's not it. 6 resistors are not needed, one is enough, since at one time only one LED is lit, therefore their conclusions can be combined. The clock generator circuit is most simple to assemble on one of the elements of the K561TL1 chip and a resistor and capacitor, or two elements from K561LA7 (LE5) and 1 resistor and 1 capacitor.

And so the home-made is cool, cool, it’s necessary, the coil aftar stuck, some kind of rheostat. I confess, at first I looked at the photo for a long time, I thought, why are they there? xaxa
Moreover, in some of these sirens in the electronic circuit there is also a MTX thyratron of some kind, if not confused, with the radioactive gas inside. I myself have never sorted this shit out and am not going to do it, I just read it in the relevant literature. True, I didn’t understand why the heck to use such a thyratron that an ordinary one would not work? But the developers know better.I believe that for the same purposes as in some automotive spark plugs. Have you heard about this? I held this candle in my hands sun_bespectacled
Well, de video lost?
ValeryWell, how can I explain the essence to you?

Oh, come up with! xaxa

This device has a Geiger-Muller counter. It works CONSTANT while the device is turned on. The display every 10 seconds updates the result of measuring the background radiation at a given specific point at a given moment in time. SIMULTANEOUSLY, CALCULATION OF THE ACCUMULATED DOSE FOR A SPECIFIC CUT OF TIME I DO NOT NEED TO SWITCH ANYTHING on the dosimeter.

Try to turn on the music on your computer and at the same time the CALCULATOR program and count something.
Can you imagine it? xaxa The same thing in the device, the processor is not weak there, it also draws color graphics ...

In my opinion, I clearly explained now. popcorn boss
The device complies with TU

TUs are developed by the manufacturer. Then, of course, they are provided to the "competent authorities" for verification, but, then, "A device for measuring the radioactive background" can be sent there, and later it will be called "Super dosimeter" when it is released into the series.)))
And when I wrote about “GOSTs and OTK”, I mentioned this all as an example of the fact that marketing is now gaining the upper hand over the scientific approach to the production of devices.

I say again, the dosimeter measures only the DOSE !!! If your dosimeter can measure radiation intensity, then it can do it only when it has been switched from dosimeter mode to radiometer mode!
Yeah, he was looking for an "ampoule.)) Although, in fact, there is a sleeve made of material that looks like ceramic.
In radiometers thirty years ago (Beta, Pine, etc.), to comply with the standard characteristic, the SBM20 was on the screen from, as I recall, lead foil. At the same time, accuracy was achieved, linearity increased, but sensitivity decreased. Whatever the new design SBM, it cannot even surpass the old one by an order of magnitude. SBM20 has a maximum working DER of 40 μR / s, i.e., 0.12 R / h. Suppose, although I think this is unlikely, the maximum achieved 1 R / h. But the modern SOEKS device, it seems to me, has no screens, so the sensitivity is higher, and the accuracy should be worse.
Clear. It has SBM-20 in it, but it’s not what we (I almost said everything) know, but it seems to be low-voltage, with the letter M. I will raise documentation on him, read. It has different parameters, so it is likely that the manufacturers of the device will not make a mistake about lethal doses. Notice what I wrote about the counting time of 10 seconds? With the usual SBM-20, this will not work. Meria used to have a dosimeter based on SBM-20. Counting (measuring) time 2 minutes. And he showed something like this: 15. 25. 11. 30. It was proposed to average. And this one shows something like this. 17. 19. 16. 19. Is there a difference? While the readings are updated every 10 seconds. By the way, he has a graph on the display, where you can see the passage of EACH particle, unless, of course, several flies strictly simultaneously.

And about the height, I know. Just climb a kilometer, already the background will increase markedly.
About
what is his maximum radiation detection limit
I would not really trust this document. The fact is that meters such as SBM (and there most likely this is there) have a dead recovery time after a breakdown, therefore such a device is unlikely to show levels close to deadly (tens of R / h).
And about a primitive test - when flying in an airplane at an altitude of about 10 km, the radiation level is about 100 μR / h. True, I checked this for the TU-154, but I do not think that modern ones have more efficient shielding of the passenger cabin.
I also want to mention radiation culture and hygiene, or rather their complete absence. xaxa
About 5 years ago I went to work with a friend. He is professionally associated with electrical and electronics. He was having lunch at that time. I wanted to sit on an empty chair, but saw that there was a half-dismantled fire detector.Smoke, old type, with a radioactive isotope. They have long been banned, replaced everywhere, but they may have remained at some particularly important facilities. I asked him if he knew what he was taking apart. Yes, he says, I know, the bread itself with the sausage is bursting, but he didn’t wash his hands, you can see right away. That is, he disassembled this sensor and eats it with the same unwashed hands. I resisted him. And he said "garbage, I could not find where the radiation source is." It turned out that he dismantled this detector precisely in order to find how he put it, "ampoule". I don’t know if this is a coincidence or not, but he still has no children, although he is already 45 years old and has been married for a long time.
Ivan_PokhmelevI agree with you about nitratomers. When I bought a dosimeter from them in a store, I saw a bunch of different ecotests there. And I also had a doubt crept in if it was a salinometer ... Although ... I don’t know.

And as for radiation, say correctly that they’ve hardly done it. The normal background is known, but the device correctly shows it. In addition, I had 2 cases when I was convinced of its performance.

Want to add. I looked in his menus, what is his maximum limit for detecting radiation (to what he counts without overflowing the counter). I almost fell off the chair when I saw it. I don’t remember exactly, but according to the tables, this is a lethal dose for a person to stay in such an area for only 1 hour. Here you have a dosimeter of "household" purpose. The probability lies in it that you can run into the burial ground, as I was with friends in a ravine then. Well, the device was with me.

We advise you to read:

Hand it for the smartphone ...