Simple and reliable. For those who write that this is an outdated technology, I do not envy when this rocket arrives to you.
@TecKonstantin10 сағат бұрын
Unijunction such a rare sight
@guillaumef229313 сағат бұрын
Très jolie vidéo et très instructive, à diffuser au bacpro aéro !!
@cogoid18 сағат бұрын
It is a neat looking instrument. Thank you for showing the insides! I wonder when this unit was designed? It has been a long time since oscillators with unijunction transistors were fashionable...
@lelabodemichel516215 сағат бұрын
According to the date codes of parts manufacturing date is 1980. Therefore this is a design of 70s.
@firasgh87120 сағат бұрын
شكرا على الفيديو
@leandrocartes53421 сағат бұрын
hello le labo de michel may from argentina nice video thanks for video
@lamalandyКүн бұрын
Very nice looking instrument and compact solution to the fluxgate slaving requirement. Thanks for sharing.
@fazlanursani8980Күн бұрын
What do you mean by reverse engineering please tell me...❤
@ThermalWorld_Күн бұрын
Reverse engineering" refers to the process of taking something apart or analyzing it in detail to understand how it works, what its components are, and how they interact. Here's a breakdown of what it typically involves: Deconstruction: Physically or virtually taking apart a product or system to see its components. This could be hardware, software, or even processes. Analysis: Functional Analysis: Understanding what each part does and how it contributes to the overall function. Structural Analysis: Examining how parts are connected or interact with each other. Documentation: Creating detailed diagrams, schematics, or code that represents the original design. Reconstruction: Sometimes, after understanding the system, one might rebuild it or create a new version, often with improvements or modifications. Understanding the Logic: In software, this might involve decompiling code to see the logic and algorithms used.
@aerialbugsmasher22 сағат бұрын
google it
@0MoTheGКүн бұрын
Thx for the caps
@hamzaarif7249Күн бұрын
Lots of support from Pakistan
@0MoTheGКүн бұрын
Bonjour Michel, I too broke my LCR-Meter. I have the same HM8118 as in the video except that my shields are soldered in. I have a few questions: What is the connection/purpose/use of the TL081C Pin 2? In my case it seems stuck at the positive supply voltage. Why did you use a 1979 Op-Amp? (NE5534) Why can the X_curr ports (stimulus) be measured the same way the X_pot ports are? Is it normal for the ST Microprocessor to reach 50°C ? Why are there two, not one, LMH6321 and why are they being driven by different OpAmps? My left LMH6321 gets very hot because the TL081C commands it to source 11V, I am trying to find the reason. What did you say at 5:00 ? (Sorry, but it is always difficult to understand what you are saying.) "H-Curr-Signal"? And at 5:06 as you open the cover? Merci
@lelabodemichel5162Күн бұрын
NE5534: before designing the HM8118 I did the reverse engineering of several LCR meters from different manufacturers and all of them use this op-amp for the TIA... One LMH6321 is used for the test signal generator, the second one is used for buffering the output of the NE5534. at 5:00: "here you have the buffer for the Hcur signal", it is the LMH6321. at 5:00: "this is the multi-slope ADC" I don't have any TL081 on my original design, maybe R&S has changed this part for some reason. There are two single op-amps on that design, I think you refer to the one connected to the LMH6321, pin 6 of the op-amp to pin 1 of the LMH6321. Pin 2 is the feedback connected to pin 9 of the analog mux DG409 which permits to select between different source resistors. You can change this DG409 first. We can discuss by email to avoid long discussions here. Michel.Waleczek (at) gmail.com
@0MoTheGКүн бұрын
@@lelabodemichel5162 I will check the DG409 and respond as I have traced the error back further. THX
@0MoTheGКүн бұрын
When I looked for info on this instrument I was shocked to realize that the same guy I watched take missiles apart was the engineer behind this instrument !!! I am an EE and work on electronics you would find interesting.
@lelabodemichel5162Күн бұрын
Design of instruments is my speciality.
@keysejkeysej2 күн бұрын
M. Waleczek- very Polish sounding name ;) do you have family in PL? greetings from Poland- you have tremendous knowlage and passion to this!
@lelabodemichel51622 күн бұрын
Yes I do, my parents were born in Poland.
@user-km8nf7fc4g2 күн бұрын
Before drawing the electrical circuit, do you draw the printed traces from the PCB?
@lelabodemichel51622 күн бұрын
No, I draw the schematic directly from the pcb. I use a continuity tester with sharp needles when the tracks are not visible or covered with conformal coating like this one.
@itabiritomg3 күн бұрын
The amateurism in the construction of this board is mind blowing! we used to do better than that when we were high school students.
@x-gamessimulator10673 күн бұрын
5:38 Atmel Microcontroler??
@zzh92554 күн бұрын
Looks like BMP 110kg servo,14.8V. Maybe it was manufactured in a small factory in Zhuhai as a replica of Hitec servo.
@Carlos-n9b4 күн бұрын
Podran algún dia en español,grabar estos fenómenos procesos.
@hrshovon4 күн бұрын
to think that these absolute technological marvels are made for one time use only, for taking human lives. such beautiful craftsmanship.
@rootbeer6664 күн бұрын
Surely obtaining such secret information will turn the war around... 🤣
@stevenkroot315 күн бұрын
The build quality of the servo and the parts that were use to fasten it in place are interesting. The mounting bracket was attached to the skin using riveted nut plates (a plate with formed threaded plate with a countersunk rivet on either side of the threaded feature) instead of Riv-nuts or even sheet metal screws. There were paint marks to indicate the assembler verified the fasteners were tighten, if not torqued. The mechanical connection to the servo was with a prefabricated horn attachment as opposed to just clamping to the output shaft, and finally the connecting arm to the control surface utilized a heim joint. These points indicate to me that the design and manufacture is not completely the absolute cheapest approach and built it to at least high quality hobby level if not minimum aviation grade.
@ligius35 күн бұрын
Thank you for the teadown. It looks like when this board was designed, the bipolar transistor was still a new thing and tubes were here to stay. I have studied a few cold war-era electronic books and they have quite a few mistakes. They had a few good DDR engineers and don't want to take anything away from them but the few URSS people thar could design, code or jump emigrated early on. Source: I lived under the friendly bear protection.
@foobarables6 күн бұрын
What a wonderful piece of engineering. And all this just for killing fellow Earthlings with whom we disagree or from whom we want to steal what they have.
@autonomousperson6 күн бұрын
A
@oriondark32826 күн бұрын
On one hand, it really looks like the home project of a not very skilled amateur. But on the other hand, if it does its job, the look does not really matter. What's more important is that the production of these pieces of hardware does not require the sophisticated production lines and well-trained personnel. Everyone forgot, but in the case of the real war, not a proxy conflict somewhere overseas, the high-quality professionals quickly become a very scarce resource. And you will have to do the job with the people you have right here and right now. And without skilled personnel, the advanced machinery quickly degrades. Will it be possible to reproduce the production cycle with just that? What will be the time lag before the "downgraded" production lines start producing enough lower-tier munition? So the "Russian", "Iranian", "North Korea" technologies are worth not joking about, but analysis. Because it is quite possible that, in the end, all the war participants would use something like that.
@ItsTristan1st6 күн бұрын
This looks like a BUK interceptor. The US scoured the world to get missiles to resupply Ukrainian BUK launchers, who knows what this really is and where it is from. There is far too much speculating going on.
@cogoid7 күн бұрын
So, this board is one small piece from an antiaircraft missile Buk. There are dozens if not hundreds of other boards in the missile, including a computer, some microwave circuits, etc. The particular model of the missile which this board came from was designed in 1990s, which was the lowest point for the Russian industry. The companies were not getting any orders, and the workers were literally not getting paid for months in a row. Crime and poverty were all around. This may in part be an explanation for why this board looks substandard compared to even the older USSR military hardware. But whatever its deficiencies, the rocket must have passed the tests and it had been in production at least up to 2013, the year when this board was made, and possibly much longer.
@Clark-Mills7 күн бұрын
Thank you; gems decoded - still way above my pay scale but I can appreciate the wizardry required to do this.
@turtulara7 күн бұрын
Dont get fully of the old technology. There is no old weapons.
@MYKI687 күн бұрын
pour un missile c'est du travail d'amateur !
@user-ui2fr2fq1w7 күн бұрын
Hello Michel what kind of software do you use for drawing schematics? Greetings and thank you.
@lelabodemichel51627 күн бұрын
PADS Logic
@user-ui2fr2fq1w7 күн бұрын
@@lelabodemichel5162 Thank you so much. I will tell you the thing with these guarding tracks connected to the opamp output in the inverting configuration and not to the ground. In the schools of eastern europe they teach that the virtual earth point (after the input resistor) has some resistance as well, and if some noise will be picked up by this point it will be hugely amplified by the feedback resistor. The signal that comes from opamp output that is inverted is meant to keep the noise level at minimum because if any gain of such noise will occur at the opamp output, it will be effectively attenuated, as it is the same noise as at the virtual earth point but inverted, and that would be the effect of capacitive coupling between the guard track and earth point. If connected to ground, still the common mode noise could be amplified but not attenuated then, and if any noise will be picked up by the ground it could be easily translated to the opamp output causing errors. It is another thing if by these impedances that theory is valid but this is how mostly the russian engineers are trained.
@lelabodemichel51627 күн бұрын
A guarding has nothing to do with noise. It permits to avoid leakage currents due to pollution on the board. Leakage currents return to the guarding track and not to the sensitive track. If you have a voltage present between the guarding track and the track itself it will increase dramatically this leakage current. Difference of potential should be minimum. Furthermore on that board you have all combinations, you don't have the same guarding track connection for same configuration. Anyway guarding tracks are not required with such resistors values.
@slayer93737 күн бұрын
Prochaine vidéo : j'analyse le radar d'un des Rafale qui c'est cracher récemment
@fredfred23637 күн бұрын
Please will you turn up the audio gain during your final edit. Sound levels very low...
@fredfred23637 күн бұрын
1978 tech? Looks like the guts of really old video machines and TVs I've fixed. It's the usually the capacitors that fail with stuff that old.
@lelabodemichel51627 күн бұрын
Capacitors are not the same than TVs or video machines. It is a wet tantalum, K52-1B type: elecond.ru/pdf/k52-1b_en.pdf The storageability is an important parameter, 20 years for this one.
@artip7777 күн бұрын
А вот это точно наша плата! Бескомпромиссная лапша МГТФ провода в синей изоленте, налепленная прям на плату 😁😁😁 Изящно, просто. Коннекторы для слабаков!!!
@campbellmorrison85407 күн бұрын
Thats impressive reverse engineering, that must have taken some time for sure, very interesting thank you
@wgmskiing7 күн бұрын
The dial inductance test equipment is really neat! I've never seen one of those.
@lelabodemichel51624 күн бұрын
General Radio type 107-K, I have the 107-L model also. See page 43: www.ietlabs.com/pdf/GR_Catalog/GenRad_CatG1_1932.pdf
@StereoSpace7 күн бұрын
Russian missile power supply board is full of American parts. LOL
@victorman22277 күн бұрын
The russian name for guarding is "equipotential protection". A bit ironic how they mess it up even though the principle is in the name.
@TVOrientalTelesofiabartolomeu7 күн бұрын
Uma máquina muito linda
@Engineer_Stepanov7 күн бұрын
Синяя изолента!
@cry2love7 күн бұрын
Ракета носитель ядерки 😂
@user-nz8rv8ft5q7 күн бұрын
Да классика 90х-нулевых. Эта хрень всплывает периодически, в защиту скажу что британские ракеты тоже большой мем о том как разводят чукотских юношей на агитку. Просто эта фигня скорее всего прошла весь цикл испытаний, а требования к плате по ходу были достаточно низкие. Оно летит, поражает цель, иногда ломается и тогда достают еще пару ракет, все равно их делают массово. Для носителя ядерного оружия требования сильно проще, как у точки-у КВО было 3км, но плевать потому что ядерный взрыв примерно где и надо. В военке требования о высокоточности это сравнительно недавняя тема, те кто наводят цель порой сами представления имеют о том чтоб пульнуть где-то в той стороне или где-то в том районе. Иногда надо попасть по мосту или по зданию, тогда уже вот да. Конкретно эта плата явно делалась просто вчерашним студентом и прошло испытания.
@user-lo6hg3np8s7 күн бұрын
@@user-nz8rv8ft5q каких нулеввых, начало 80х.
@oriondark32826 күн бұрын
@@user-nz8rv8ft5q, да как сказать, про "". Первые эксперименты с управляемыми боеприпасами начались в конце Второй Мировой войны. Немецкий "", американский "", то, что вспомнилось сразу. Понятно, что автономные системы наведения набрали популярность гораздо позже, но высокоточное оружие это ни разу не недавнее изобретение. Вояки о нём мечтают испокон веков. Что касается "". Может быть оно и так, лишь выполняла свою функцию, но чёрт побери, технологичность! Её изготовление это же настоящий кошмар! Жгут непонятный, изолента, стяжки, поточечная пайка... Масса ненужных ручных операций, каждую из которых можно сделать через одно место и сломать всё изделие целиком. С другой стороны, если переделать этот узел, то наверняка зацепит и соседние, придётся перебирать и их "ripple effect". В результате придётся переделать чуть ли не всю начинку. Поэтому "работает - не трогай".
I never in my life thought I'd see something like this! And it turns out it's really primitive too!
@staryduren7 күн бұрын
How are you sure this is from KH101?
@lelabodemichel51627 күн бұрын
After some researches it is from a 9E420 radar seeker, 9M317 missile and probably others.
@0MoTheG7 күн бұрын
It is from a Buk system, likely a semi active radar seeker from the 70's.
7 күн бұрын
So the vatniks are using surplus parts from the 1960's?
@stevesteve80987 күн бұрын
looks like it was laid out by a first year gardening student...
@rsmrsm20007 күн бұрын
amazing
@annaoaulinovna7 күн бұрын
its a bad low level technology
@tHaH4x0r7 күн бұрын
Very interesting stuff. I do wonder what the board is used for, all the different blocks are too generic to really tie any leads to. By the way, which of the blocks was under the shield? I presume the oscillator?
@lelabodemichel51627 күн бұрын
Yes, it was the oscillator. I don't know why, the power is quite small and the frequency not too high. It is the same for the guarding tracks, totally useless with the resistance values used in that circuit, when the guarding tracks are correctly placed.
@lelabodemichel51627 күн бұрын
I don't think so, it can be used for so many different things. I don't know how many boards are present on that missile, it should be impressive.
@user-nz8rv8ft5q7 күн бұрын
@@lelabodemichel5162they have a lot of these. Even a practice of using connectors is kinda difficult to convincing people. This wire harness is actually reliable, but require a lot of manual labour. But who cares? A couple of extra women will get a stable job on a military factory.
@chefchaudard35807 күн бұрын
I was thinking of the proximity fuse : this frequency can be use to generate the pulses of the high frequency radar?
@norbertmaksymiuk74447 күн бұрын
The level of technology in the 70s is supposedly a modern rocket 🙄