Birth of The Transistor: A video history of Japan's electronic industry. (Part 1)

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  • Опубликовано: 20 ноя 2024

Комментарии • 1,1 тыс.

  • @RC-nq7mg
    @RC-nq7mg  5 лет назад +619

    The one thing I have learned by reading this comment is people seem to think that the original inventor should be given all of the credit for every single improvement or advancement on their invention,... forever. Just because someone invents something doesn't mean its useful. In many cases in history, it takes a third party to look at an invention that seems like a novelty, that is deemed neat but useless and say "Hey I can use this for something" to which they set out to improve on the invention to make it into something that can be of use to society. Not once in the video does it claim that Japan invented the transistor. America did,... and it was crap. They didn't even have a viable prototype, just a jumble of wires and semiconducting minerals,.. a bare bones proof of concept that was temperamental at best. The Japanese saw the opportunity and benefits in perfecting the technology, and unfortunately for American inventors the foreigners usually see the these opportunities and act on them, long before they realize their oversight. It even happens right at home, just like the Edison and Tesla fight for standardizing electrical distribution. The fact that Edison ever thought he was smarter and superior to Tesla was laughable. Furthermore, Edison also noted the properties of thermionic emission while experimenting with his electric lamp, had he not been so full of himself and fixated on the glowing filament producing light he could have invented the vacuum tube as well. It takes more than one person to truly invent something, someone comes up with an idea, and someone else says "hey we can use that for something!" By the way, your beloved Henry Ford used Dodge Brothers internal combustion engines in his early vehicles, and Chevrolet was a Swiss automotive engineer. It takes groups of people to make progress, not just one.

    • @nitori_kawashiro
      @nitori_kawashiro 5 лет назад +14

      You should pin the comment

    • @CraigMansfield
      @CraigMansfield 5 лет назад +15

      RC286 Well said

    • @nitori_kawashiro
      @nitori_kawashiro 5 лет назад +36

      @@PressRecord777 I hope you are not serious, if so, I feel bad for you...

    • @larrylentini5688
      @larrylentini5688 5 лет назад +22

      @RC286 I scrolled through pages of comments and saw nothing but praise for the documentary and Japanese researchers. I assume you deleted some comments, but fixating on outliers like this just creates the problem it attempts to correct. Particularly when done in such an insulting way with straw man arguments that will make people contradict you out of annoyance if nothing else.

    • @PressRecord777
      @PressRecord777 5 лет назад +15

      @Daswf852 It's called sardonic irony. The giveaway was I didn't include the word "privileged."
      Now shut up, I'm trying to impress/bang this hot Berkeley chick.

  • @7eroBubble
    @7eroBubble 5 лет назад +109

    I've been an electronics design engineer for 32 years now and still continue to get a kick out of this kind of material... great video. Thanks!

    • @ertugrulgazi448
      @ertugrulgazi448 Год назад +2

      Humanity owes its present comfort to you, engineers. I have immense and great respect for all engineers. It is engineers who make the world more livable. 0 and 1 change the whole World. respect!

    • @octopusmusic332
      @octopusmusic332 Год назад +1

      Bro please share how to become an electrical designer i am an electrical graduate

    • @onestopfabshop3224
      @onestopfabshop3224 Год назад

      I'm not even worthy to reply, but thank you for your contributions.

  • @sciphyvmp7085
    @sciphyvmp7085 5 лет назад +33

    That excitement and enthusiasm of those senior scientists. I love those humble beginnings of scientific research. Thanks for the video.

  • @marin4311
    @marin4311 5 лет назад +240

    The Japanese didn't have the money, ut they had the intelligence, the enthousiasm, and the determination. Thumbs up !

    • @samuellourenco1050
      @samuellourenco1050 5 лет назад +19

      We have to admire the ingenuity of these men, that developed science with so few resources.

    • @yolamontalvan9502
      @yolamontalvan9502 5 лет назад +14

      That was before the USA made China great again, and Mexico is paying for it.

    • @kristoferstoll587
      @kristoferstoll587 4 года назад +3

      @@yolamontalvan9502 Shut up.

    • @magg93
      @magg93 3 года назад +2

      and the industrial complex foundation was already there remember

    • @m_sharif
      @m_sharif Год назад

      Right

  • @FascinatingMr
    @FascinatingMr 11 лет назад +204

    I like how these engineers were determined, resilient, and successful. This is good inspiration.

    • @peggyfranzen6159
      @peggyfranzen6159 5 лет назад +1

      Mr. S This was easily done, after WW2, US engineers, went over to Japan. Great.

    • @JollyRoger150
      @JollyRoger150 4 года назад

      @strontiumXnitrate Sad but true, that's why we are collapsing no one understands the only commodity of value is Labour.

    • @JollyRoger150
      @JollyRoger150 4 года назад

      Exploitation of said labour and hedonism*

    • @daraa151
      @daraa151 4 года назад +1

      “If you want to live a happy life, tie it to a goal, not to people or things”

    • @FascinatingMr
      @FascinatingMr 4 года назад

      Yeti I agree with you.

  • @williammorales9185
    @williammorales9185 6 лет назад +574

    i'm literally using billions of transistors to learn how transistors were invented/made. Cool.

    • @jasonmars8854
      @jasonmars8854 5 лет назад +10

      William Morales had to read twice, but lol

    • @jub8891
      @jub8891 5 лет назад +14

      you are a transistor hoarder

    • @lucaspratt4770
      @lucaspratt4770 5 лет назад +13

      yEah WhaLE IIIMM USING 15 VaCuum Tubes to Watch ThIS!1!!!1

    • @LEKProductions
      @LEKProductions 5 лет назад +3

      A sprinkling of silicon is all I need

    • @ImpetuouslyInsane
      @ImpetuouslyInsane 5 лет назад +4

      @@lucaspratt4770 Watching RUclips in the Fallout Universe, chucklehead?

  • @mrflamewars
    @mrflamewars 7 лет назад +128

    I'm a nerdy, nerdy, nerd and I love a good documentary
    This is a Good Documentary.

    • @PotionsMaster666
      @PotionsMaster666 5 лет назад +2

      Can you please give some sites for downloading scientific documentaries ?
      That would be very grateful and kind of you.

    • @QoraxAudio
      @QoraxAudio 5 лет назад +4

      Everyone who says that of himself isn't.

    • @zooninja
      @zooninja 4 года назад +1

      +1 asking for more documentaries

    • @DavidBrown-jk2pm
      @DavidBrown-jk2pm 4 года назад +1

      @@QoraxAudio Oh. Okay thanks. Very deep.

  • @RCAvhstape
    @RCAvhstape 8 лет назад +210

    That mirror on the needle trick is ingenious.

    • @AtlasReburdened
      @AtlasReburdened 7 лет назад +24

      Helium Road Yeah, that's what I was coming to comment on too. It really really makes me want to grab that analog volt meter in the parts bin and give it an insane degree of accuracy. "Yeah, it measures microvolts and has a 30 volt range. No big, learned it from some Japanese guys who engineered their own transistors."

    • @jqzIII
      @jqzIII 5 лет назад +32

      So many genius moments.
      The hot plates. And the bucket of water.
      Amazing.

    • @grounding123
      @grounding123 5 лет назад +12

      @@jqzIII ...the buckets full of oil serving as capacitors!!!

    • @SeverSpanulescu
      @SeverSpanulescu 5 лет назад +8

      The mirror galvanometer was invented in 1826 by Poggendorff, and maybe the japanese learned about it in school. Also, the bucket of water is an over 2000 years old invention. That is why school is so important for science and technology. Anyway, to develop the transistor, mankind had to discover quantum mechanics which helped the understanding the solid state and the band theory. Then it was a matter of technology. All our devices are based on the science of 1925: Schrodinger equation. After a century, it still produces effects, but the major science had no step further.

    • @MrBLAA
      @MrBLAA 5 лет назад +1

      except not... if they had understood meter wiring, they could have adjusted the xfmr wiring on the primary or secondary and fixed the problem

  • @utopialabsvideos9408
    @utopialabsvideos9408 6 лет назад +13

    I really like how they show the process in making transistors using manual methods, like we could possibly make transistors in our kitchens. A great invention and a great documentary!

  • @DucatiMTS1200
    @DucatiMTS1200 Год назад +7

    Irreplaceable history footage and a credit to every person involved in inventing and improving solid state amplification. Just a brilliant story.

  • @game-f-un-limitedgamer8958
    @game-f-un-limitedgamer8958 4 года назад +62

    Hats off to the Japanese determination and ingenuity! Their passion for technology is inspirational.

    • @magg93
      @magg93 3 года назад

      @ki gi your brain is poop

    • @trentbateman
      @trentbateman 2 года назад

      Without the us they’d be nothing

    • @allentoyokawa9068
      @allentoyokawa9068 Год назад +1

      @@trentbateman Yeah right, other way around

    • @trentbateman
      @trentbateman Год назад +1

      @@allentoyokawa9068 you mean how us invented many of the technologies that Japan then went on to perfect? Or how if the US let the soviets run it you’d be a quarter as wealthy as today? Or how the US forced Japan to open for trade in the 19th century which prevented it from becoming a technological backwater compared to other countries? We could go on…

    • @privateprivate1865
      @privateprivate1865 Год назад

      @@allentoyokawa9068 Unfortunately many US Americans are blinded by propaganda.

  • @davewolf8869
    @davewolf8869 3 года назад +35

    "Ten million people starved to death"
    The music: do do doooooo, la dee da

  • @planpitz4190
    @planpitz4190 5 лет назад +7

    Great documentary ,it proves that nothing of importance comes easy, i never realized that the beginning of a great company like SONY that brought us the transistor radio, walkman ,discman , Trinitron TV had such humble beginnings .We truly stand on the shoulders of giants

    • @westelaudio943
      @westelaudio943 5 лет назад +2

      First transistor radio was made in Germany by Herbert Mataré, first commercial transistor pocket radio by Regency in the US (TR-1).

    • @dlee3710
      @dlee3710 Год назад

      My wife's grandfather had some of the first walkman patents and he worked for Dictaphone in CT.

  • @irockluculent961
    @irockluculent961 4 года назад +29

    This is an excellent documentary with rich human interest from original interviews with those involved, plus ample technical detail about the inventions and processes sufficient to provide a good layman's understanding of this chapter in history. I am quite moved by the Japanese determination and resourcefulness to succeed in this arena despite daunting financial and political handicaps.

  • @afzaalkhan.m
    @afzaalkhan.m Год назад +11

    The national ethos of Japan and being an ancient, disciplined civilization, all adding in achieving success.
    Audio equipment from Japan, vintage, or current is simply outstanding in design and operation

    • @killercd7682
      @killercd7682 Год назад +1

      this is reminding me of Oswald Spengler. There's definitely a cultural attitude that contributed to this great Japanese technological success.

    • @halfdome4158
      @halfdome4158 Год назад

      😃They had nothing more than little fishing boats when Europeans encountered them. Without Amerian and European technology, they would have nothing. What have they cone up with on their own????? And after decades, they still dont design their own computer chips! 😄

  • @linzero3664
    @linzero3664 5 лет назад +28

    my deep respect to pioneers that showed unprecedented enthusiasm and ingenuity. such kind of the people are REAL heroes of the past war

    • @DavidBrown-jk2pm
      @DavidBrown-jk2pm 4 года назад +3

      You don't think people who got their faces blown off in combat to stop rampant expansionism, genocide and fascism were heros. Interesting.

    • @edvargas3105
      @edvargas3105 4 года назад

      @@DavidBrown-jk2pm what an stupid response!!

    • @DavidBrown-jk2pm
      @DavidBrown-jk2pm 4 года назад +2

      @@edvargas3105 You would have to be more articulate about why my response was stupid. Explanatory.

  • @topherteardowns4679
    @topherteardowns4679 5 лет назад +16

    One of the best documentaries I have watched in a long long time. Thank you for sharing.

  • @CiroSantilli
    @CiroSantilli 8 лет назад +91

    16:24 is amazing, using a mirror and light to control temperature with great precision manually. 21:04 zone melting with a bucket of water to control height. Conan-like.

    • @nrdesign1991
      @nrdesign1991 7 лет назад +2

      it's like a weightless lever which amplifies the needle's movement so it can be accurately observed

    • @cogoid
      @cogoid 6 лет назад +8

      This ingenious technique is indeed called _"Optical Lever."_ Most physicists at that time would have been familiar with it, because it had been used in sensitive _mirror galvanometers_ until electronic measuring instruments have replaced them. It was still very resourceful, to improvise in the way the Japanese transistor makers did with the limited means at their disposal!

    • @PotionsMaster666
      @PotionsMaster666 5 лет назад

      What does Conan-like means ?
      Anything to do with the detective ?

    • @Shaker626
      @Shaker626 5 лет назад +2

      The barbarian, not the detective.

    • @unsaltedskies
      @unsaltedskies 5 лет назад +1

      @@PotionsMaster666 this conan. ruclips.net/video/1ayIJed2dn4/видео.html

  • @keithwhisman
    @keithwhisman 5 лет назад +37

    Japan still makes the best components such as transistors and definitely capacitors. I’ve seen Japanese capacitors work within spec in a 20 year old computer.

    • @flaviusnita6008
      @flaviusnita6008 5 лет назад +14

      20??? I have a TV set, B/W, made by Matsushita în 1963. Working properly!!!

    • @heavycurrent7462
      @heavycurrent7462 5 лет назад +12

      We‘ve got a fridge working for many decades (I forgot how long precisely) and it was Japanese made. The coolant was NEVER refilled once. We had to replace it with a new one because it started to rust. And the irony was we had to take it out again from the garage when the new fridge fails after 2 years!

    • @flaviusnita6008
      @flaviusnita6008 5 лет назад +10

      @@heavycurrent7462 Ah, sorry, I have also a small transistor radio with long forgotten type of batteries. Made in 1961. Belonged to my grandpa. Working well on AM. With leather!

    • @keithwhisman
      @keithwhisman 5 лет назад +3

      Flavius Nita some of those old AM radios worked without batteries at all.

    • @SerBallister
      @SerBallister 5 лет назад +3

      I think they have laws in Japan were you can't trash home electronics so easily, I guess that adds incentive to engineer things to last.

  • @Manticore1956
    @Manticore1956 5 лет назад +35

    I was amused by the part starting at 30:00 where sketches of production processes at RCA were used to "kickstart" the Japanese competition. During my working years before I retired, I was lucky to be part of a start-up factory in the southern U.S. that had some revolutionary design elements in my particular industry. These elements were born of experiences at a home factory in another state. At one point, a Japanese delegation wanted to tour our factory, and the company owner allowed it, but cameras were forbidden. About half a dozen gentlemen arrived in the delegation, and out came the sketch pads. They were all furiously drawing at high speed our layout and innovations. Being the engineer at the location, I was given instructions to let them see only so much. I had to physically block a small group of them with my body, to prevent them from seeing what we considered a highly innovative area of our process. That was over 30 years ago now.

    • @ariewijaya1679
      @ariewijaya1679 3 года назад +7

      and next time they sent people with photographic memory

    • @Snake_0000
      @Snake_0000 2 года назад

      haha. asians love to copy, its in their blood

    • @JohnNy-ni9np
      @JohnNy-ni9np Год назад +1

      Now I bet your company is teaching the Chinese how to do the manufacturing.

    • @tigerseye73
      @tigerseye73 Год назад

      Clever, those little Asians', s n e a k i n g around to steal someones' ideas.

    • @JohnNy-ni9np
      @JohnNy-ni9np Год назад +1

      @@tigerseye73 , well that's what people do if they are technology followers. Once those Asian become technology leaders the West will do the same, the method will be a bit different but the purpose is the same.
      Some 20 years ago the world was surprised at how good the Chinese springboard diving performed. Turned out the Chinese use a trampoline to train their athletes, and what the West do ? They hired all the Chinese coaches.
      Now the US is doing the same with advanced semiconductor technology from TSMC and Samsung. The US is using money incentives to lure these Asian factory into US soil.

  • @SlyPearTree
    @SlyPearTree 8 лет назад +171

    This might be a documentary about the birth of the Japanese electronic industry but it's the best documentary about the birth of the transistor itself I have ever seen. I did not know that it took Bell Labs began looking for an alternative to tube 10 years before the invention of the transistor. I also always thought that the first transistorized commercial pocket radio was created in Japan, I did not know that Texas Instrument got there first. And those pocket radios would be about $450 U.S. in today's money. They were the smart phones (or VCR. personal computer, televisons, ...etc) of their era.

    • @bruceburns1672
      @bruceburns1672 8 лет назад +14

      I am old enough to have see in my country every single electrical product from European and American and local replaced with Asian manufacturers , very few of the original manufacturers exist , Motorola invented the mobile phone , where are the majority now made , you name it any product the Asians now make all the money and have all the jobs from hundreds of years of investment and development just handed to them on a platter , how long did it take Samsung to copy Apples original smart phone , in an instant , and then became the dominant player , they are just thieving scum , absolutely no principals .

    • @tarstarkusz
      @tarstarkusz 8 лет назад +13

      The transistor is based on the P-N junction which is also an invention of Bell Labs.

    • @bruceburns1672
      @bruceburns1672 8 лет назад +4

      You are a dumb arse so called Professor ( a professor of bullshit ) Europeans originated from the top of India , Aryans , now look it up and get an education in truth .

    • @reginaldbchellew5482
      @reginaldbchellew5482 8 лет назад +2

      Bruce Burns please tutorials

    • @motoservo
      @motoservo 7 лет назад +4

      It's you who has it backwards, Bruce. Aryans (indo-Europeans) came to India. The fairer skinned Indians usually have Aryan genes where the darker skinned Indians have Dravidian (original) genes. The Aryans came thousands of years ago, granted. But migrated *to* India, nonetheless. The Aryans also migrated through Iran (which derives it's name from Aryan).

  • @PacoOtis
    @PacoOtis 4 года назад +10

    Wow! These researchers were so dedicated and so clever an so tenacious as to be greatly admired! These are the shoulders we stand on today! Thanks for the video as you have shown us something to be proud of!

  • @ldchappell1
    @ldchappell1 9 лет назад +121

    I remember when I was a little kid in the early 60s nobody wanted anything that was made in Japan. Made in Japan meant it was something cheap and would fall apart easily. That sentiment was gone by 1968.

    • @bighands69
      @bighands69 8 лет назад +10

      +ldchappell1
      Japan got trade agreements that meant they could produce goods cheaper than the US. And when they made goods that were the same price as US goods they were better because they had more profit spaces.
      German goods were just as good but were more expensive due to them not getting the same trade deals.

    • @RobertK1993
      @RobertK1993 6 лет назад +12

      ldchappell1 Sony got rid if that sentiment.

    • @RobertK1993
      @RobertK1993 6 лет назад

      Marcus Keulertz Back then it was made in Japan.

    • @Jasonsadventures
      @Jasonsadventures 6 лет назад +5

      Soon it'll be made in India, then made someplace in Africa..

    • @SerBallister
      @SerBallister 5 лет назад +7

      "Made in Germany" was the same story. It was a mark of terrible workmanship in the 1800s.

  • @MarttiSuomivuori
    @MarttiSuomivuori 5 лет назад +25

    Do people even appreciate how strongly you must believe in your basic concepts to go through all these frustrating experiments?
    Anybody 'normal' would have given up. Not these guys. Their concept of 'normal' was that of trying until you succeed.
    Somehow, they 'knew' it could be done.
    Now we know it also. Except for those who think that it was always there. It wasn't. Actual people made it happen.
    Hats off.

    • @martinkuliza
      @martinkuliza 4 года назад +1

      exactly... because these guys understood a concept
      and that concept was... NEVER GIVE UP
      even when they succeed (as you put it) they still don't give up , they move on to something else or perfect what they invented , in short, for them they do this until they die, IT'S A LIFESTYLE, not a job

  • @OldDogNewTrick
    @OldDogNewTrick 6 лет назад +13

    An amazing story of innovation and achievement. It is my opinion that the invention and development of the transistor and then integrated electronics technology was one of the greatest feats of the twentieth century. It lead to all the wonderful devices we use everywhere today in year 2018. And I watched it all happen over the years.

  • @info781
    @info781 5 лет назад +49

    Great video, just stumbled upon it. When the transistor was invented, obviously engineers/scientists everywhere were interested but for some reason the Japanese became obsessed and saw it as a way to build the economy. Why did no other country have this obsession? (except USA, who invented it, of course) It is interesting to listen to the Japanese engineers, it is not something we study a lot. Japan has many of the best engineers in the world, but names are not well known. It is fun to listen to Japan vs USA engineers, all great but in different ways.

  • @glutinousmaximus
    @glutinousmaximus 7 лет назад +11

    Remarkable footage. It was easier to produce germanium PNP type transistors then, as against NPN types using grown silicon crystals which we see today mostly. Amazing!

  • @truthbydesign5146
    @truthbydesign5146 3 года назад +11

    I loved hearing how they increased the resolution of the thermometer meter using reflected light. Ingenious!

    • @DaveBuildsThings
      @DaveBuildsThings Год назад

      That was a point I made note of as well. The needle moved so little they couldn't see it. Adding the mirror and shining it at distant object just upped its measuring resolution. Using the slow release of water to move the heating coil around the tube was also impressive. If I'm ever lost in the woods trying to survive, I want one of these guys with me.

  • @Amberstargazerofearth
    @Amberstargazerofearth Год назад +3

    Priceless! Must be learnt by students in technical universitys worldwide.

  • @nazriali215
    @nazriali215 2 года назад +34

    I've worked in Japanese companies making diodes, walkman, floppy disk drives and CDROMs during those old days, absorbing into the Japanese work culture with strong determination, hardwork and vision.

    • @afganno3385
      @afganno3385 Год назад +2

      i married a japanese women.........and wish i did'nt!

    • @cscansin
      @cscansin Год назад +4

      @@afganno3385 lol, straight up racist to assume her culture is strictly the reason you're probably incompatible - this video is about the growth of a technology and its relationship to country's economies and the overall electronics industry.
      Appreciate the knowledge being shared.

    • @afganno3385
      @afganno3385 Год назад +1

      @@cscansin who are you to tell me if or if not differences in cultures were/are a reason ive found my marriage hard work? ive been married for close to 20 years and i have a kid with the women and she's my best friend. the marriage is not hard work because either one of us is shagging somebody or the usual stuff. its down to the differences in culture. hindsight is a wonderful thing and i think we would both say, we wish we had spent alot more time talking about our cultures properly before we tied the knot. i would advise anybody marrying somebody from a different culture to put the effort in before hand. a wifes role IS different in japan than the uk. a wife properly runs the household after marriage. i must get back to my work now as im the worst salary man to of ever lived.

    • @cscansin
      @cscansin Год назад

      @@afganno3385 I took from what you said, you put a qualifier of race behind a marriage statement - my apologies and I appreciate the insight, 20 years is a success, congratulations and hope you both find what you need.
      With respect to, the expectation of a woman running the household is an archaic tradition which, atleast where im from, is dying and that's, personally, great to see. Too many lazy irresponsible fathers out there not helping with maintaining the house bc it's a "woman's" job.
      Anyways, great doc and surprised that it sparked much conversation.

    • @afganno3385
      @afganno3385 Год назад

      @@cscansin i was kind of joking with my original comment.

  • @johnpenner5182
    @johnpenner5182 9 месяцев назад

    seiichi denda's story about how they reflected light off the needle of a meter to get the temperature accurately enough is truly amazing! thxu for including this gem! ✨

  • @gk10002000
    @gk10002000 5 лет назад +7

    got to appreciate the applied engineering they did from first basic principals, using hot plate coils as resistors, making capacitors with drums filled with oil. Japanese McGyvers

  • @michaelcook3794
    @michaelcook3794 5 лет назад +23

    The transistor was invented in 1947 at Bell Labs in New Jersey. In 1954, Texas Instruments of Dallas teamed up with Regency Electronics (its original name was Industrial Development Engineering Associates, or I.D.E.A.) of Indianapolis to manufacture the first pocket-size transistor radio.

    • @michaelcook3794
      @michaelcook3794 Год назад

      @What's Growing Wrong‽ Not Japan...

    • @gamedevunity3dliviopanizzi170
      @gamedevunity3dliviopanizzi170 Год назад

      @What's Growing Wrong‽ gli americani hanno il brutto vizio di prendersi dei meriti che non gli spettano come il telefono è stato inventato da antonio meucci nel 1871 ,prototipato nel 1854.

    • @JesusisJesus
      @JesusisJesus Год назад

      Yet they can only fit a trillion of them on a circuit board in 2023.

  • @RolandElliottFirstG
    @RolandElliottFirstG 5 лет назад +5

    This is amazing, I have been involved in electronics for over 40 years and still didn't realise it was the yanks who invented the Germanian Transistor.

  • @advancednutritioninc908
    @advancednutritioninc908 5 лет назад +7

    I do like how Bell Labs offered even the 2nd and 3rd generation transistor technology to the world through symposiums!! It is not the best way to maximize profit $$ but it was the right thing to do! I am glad America/Bell Labs did it !!

    • @glasgowbrian1469
      @glasgowbrian1469 4 года назад +3

      Advanced Nutrition Inc. Same for optical transmission. The concept was conceived by Charlie Kao (Chinese) in the 1960s at Standard Telecommunication Labs (STL) in Harlow, England, when I worked there. The management had the vision to abandon microwave transmission underground, and fund work on a high capacity transmission medium, and lasers for the signal. And so optical fibre telecom was born, in our labs, and passed on to the world. Charlie got a Nobel Prize for it. By the way, STL labs is now sadly gone, as it went down with the demise of the Canadian company that it became part of - Nortel. Design of optical fibre systems continues to this day in Ciena, who bought the optical division of Nortel in Ottawa, where it still exists.

  • @Omegaman1969
    @Omegaman1969 5 лет назад +25

    My father used to hand assemble germanium transistors in the 50s for GE . He said the failure rate was so high that they had big oil drums to store all the bad ones . That was kept secret from the other manufactures as they were in a price war.

    • @davidgrenis638
      @davidgrenis638 4 года назад +1

      simon hanlon FUNNY THING ABOUT THAT IS WE LEARNED HERE THAT EVERY MANUFACTURE WAS HAVING THE SAME PROBLEM BUT JAPANESE WOMEN WERE PROBABLY BETTER THAT MEN AT THIS TIPE OF WORK .
      WE SHOULD HAVE BEEN USEING ZUNI AMERICAN WOMEN WHO ACTUALLY ARE AMAZING MAKEING SMALL JEWELERY .

    • @Omegaman1969
      @Omegaman1969 4 года назад

      John Grzeskowiak They were sold to scrap metal dealers

    • @Omegaman1969
      @Omegaman1969 4 года назад

      John Grzeskowiak He had 2 friends that worked with him there , one went on to start AMD and the other was also into microprocessors, my father carried on with GEC , later Marconi and worked on ICBMs Polaris and Trident. He still fixes radios at 86 years of age . I’ll ask him if he has any more stories from back then .

    • @Omegaman1969
      @Omegaman1969 4 года назад +1

      @John Grzeskowiak Hey John, I saw my Father today and asked him a bit more about the early days. He said they didn't scrap the old transistors because they couldn't risk anyone finding out. The oil drums were stored on site in Stockport....he said knowing GEC they are probably still stored somewhere :-)
      I asked him about the production side of things, he said they would use car headlight bulbs to solder the transistor wires in place and that local ladies would be lined up on the production line making germanium transistors...quite a sight.

    • @Omegaman1969
      @Omegaman1969 4 года назад

      @John Grzeskowiak I asked what he went on to work after transistors, he said he worked on control systems for atomic power stations. They had issues with transistor values drifting as they warmed up so he came up with an idea to use dc for the first stage, witch to ac through the next stages then back to dc for the final stage, he said it worked very well and the bosses were most impressed with his design. He said he then went onto space and defence system and couldn't tell me about that, he got choked up and a tear ran down his face and he said we did some pretty impressive things.

  • @KrustyKlown
    @KrustyKlown 5 лет назад +4

    Transistor Radios ....remember the models from the 60's? .. where models touted the number of transistors inside (more being better) ... and the leather protective cases. These were very common Christmas presents for kids.

  • @mattikaki
    @mattikaki 5 лет назад +3

    As a SONY Professional video maintenance engineer this really is interesting. Thanks.

  • @moiquiregardevideo
    @moiquiregardevideo 8 лет назад +18

    Interesting to learn that Texas Instrument was an oil (fossil fuel) company and made the first transistor radio. Something which didn't drain the batteries, stay cold and weight much less.
    Crystal radio which take no battery at all already existed, but only one person could ear the weak sound on headphone. AM radio only need 1 diode to demodulate the audio. After that, the capacitor to get the envelope and resistor to discharge the capacitor are implicitly present in the headphones. The transistors, or vacuum tube, are just amplifying the signal.
    There is many transistors in cascade because each one amplify only 100 times max. At that time, the gain was anything between 20 and 100 even if they all came from the same production line. Each stage is limited to a gain of 20 by using a resistor on the emitter. This reduce the gain to an almost fix value no matter how the transistor can really amplify.
    Raising the power from 10 milliwatt like these first radio to 80 watts, we just need to add a few mode transistors. 10 mW * 20 = 200 mW of next stage. Then 4 watts on the next stage, then 80 watts on the third stage. The heat of the "naive" design would be quite large, so 2 transistor are needed on the final output stage. One pulling toward positive when the waveform is raising, the other pulling toward zero (or negative) when the wave shape goes down.

  • @povnw8985
    @povnw8985 5 лет назад +7

    Old school skills on display.

  • @waziammm
    @waziammm Год назад +4

    I find it amazing how this closely this story of Japanese excitement, refinement, and application of overlooked western technology mirrors that of FM synthesis. Moog and Arp dismissed the technology and it may have been abandoned, but bright minds at Yamaha had the vision to throw their backing behind the research to complete and commercialise the process, and ultimately Japan would dominate the industry.

  • @pingoleonfernandez7638
    @pingoleonfernandez7638 4 года назад +6

    That water bucket set to control the coil lift is really really clever

  • @husseinalaa2761
    @husseinalaa2761 5 лет назад +5

    it is just amazing, i would like to thank all of the people who made our life easy.

  • @ernststavroblofeld1961
    @ernststavroblofeld1961 9 лет назад +3

    One of the most interesting documentaries, I have seen in a very long time.
    Thumbs up for the Japanese Ministry of Foreign Affairs, the filmmakers.

  • @kamiloperez89
    @kamiloperez89 2 года назад +3

    Music Industry was fundamental for commercial use of transistors in the 50's.... never thought about that.

  • @decaalv
    @decaalv 7 лет назад +29

    Electronics Engineering in post war japan was not for wimps!!! It was deadly. Awesome video. I learned a lot.

    • @JaySmithKiawah
      @JaySmithKiawah 5 лет назад +3

      The U.S. started / funded some Japanese electronic firms to help them rebuild. Much like we did in Europe after the war.

    • @grounding123
      @grounding123 5 лет назад +5

      the engineer even admitted the process being deadly -- how he would get electrocuted to unconsciousness and then get back to work...crazy but amazing stuff

    • @grounding123
      @grounding123 5 лет назад

      @@clementoseitano7568 Yes! Watching this video solidified that fact.

  • @HECKproductions
    @HECKproductions 5 лет назад +113

    everyone: we got no money so i guess we cant do anything
    japanese: we will use mirrors and garbage to make it work

    • @ryanmalin
      @ryanmalin 5 лет назад +1

      Go watch Kerosan and get back to me

    • @DominoStorm1
      @DominoStorm1 4 года назад +3

      Lol!!!!!!

    • @DM0407
      @DM0407 4 года назад +3

      These transistors were built like samurai swords.

  • @DoctorBlankenstein
    @DoctorBlankenstein 5 лет назад +11

    to think... i remember a day when youtube would suggest Part 2 of a video after viewing Part 1. what a concept

    • @kristianTV1974
      @kristianTV1974 5 лет назад +13

      Apologies citizen, but all our servers are deployed currently working out the best ads to serve you! Stand by.

  • @warrencurry4382
    @warrencurry4382 8 лет назад +3

    The patent was for the chemistry explaining the action of the transistor junctions, etc. The actual device was a "Crystadyne" which had been in use for a couple of decades by amateur and shipboard radio operators. When Dr. Shockley found out about it, he was incensed, because he knew what it was, having seen one in operation.

    • @bigalejoshileno
      @bigalejoshileno 5 лет назад +1

      @silverbird58 point contact devices are older than tubes! shockley just found the physical background and developed with hid team a systematic manufacture method.

  • @MrPnew1
    @MrPnew1 5 лет назад +5

    A fascinating history. Thanks for the upload.

  • @HeilmanHackatronics
    @HeilmanHackatronics 10 лет назад +20

    Very cool video, great to see the creative techniques the Japanese came up with.

    • @edmclaughlin4923
      @edmclaughlin4923 10 лет назад +6

      Excellent. Love the transformers of old and the "capacitor oil cans". Also Sony's "I only believe what I see". Thanks Matt.

    • @camolita0610
      @camolita0610 5 лет назад

      Exelent coment!

  • @AugustineAriola
    @AugustineAriola Год назад +1

    I have been in electronics for years but this documentary is mind blowing.

  • @brig.4398
    @brig.4398 9 лет назад +14

    AT&T films brings back memories, I worked under the old Bell System. Employees took pride in their work and Ma Bell took care of it's workers.

    • @joeyjamison5772
      @joeyjamison5772 8 лет назад +6

      +Bri G. Those days are over. They're nothing but corporate greed now and couldn't care less about their customers. I just got rid of them.

    • @brig.4398
      @brig.4398 8 лет назад +7

      I agree, AT&T is not the same anymore. I started working there in 1973 under the old Bell System. You hired on and had a job for life, that all changed after 1985 when they broke up the Bell System.

  • @livingabovethe12th
    @livingabovethe12th 7 лет назад +5

    great doc....and stunningly funny too. the translator translating laughter slayed me

  • @live4Cha
    @live4Cha 9 лет назад +17

    amazing story of Japanese hard-work and enthusiasm.

    • @bruceburns1672
      @bruceburns1672 8 лет назад +5

      They used to call the Japanese back then economic animals , they were the generation who had lost the war and lost their Asian face to the world and were out to regain their self esteem , every trick in the book was used to elevate themselves and line their bank account , they still die at work from overwork , they still have e poor housing , they still don't consume the goods they produce but expect everybody else in the world to buy theirs , they do everything possible to stop imports while destroying other countries manufacturing , now just replace the name Japan with China and that's what the world has to deal with now , I just replaced a Hoover vacume cleaner now made in China I bought for $450 , used 20 times and the motor burnt out , when they were made locally they would last 15 years , what I am saying is all our local manufacturing has been replaced with imported inferior Asian junk , the clothes are the worst .

    • @effedrien
      @effedrien 5 лет назад +2

      @@bruceburns1672 I bought some quite expensive American audio equipment and it was cheap and badly assembled crap inside. Went to Sony, and got some decent stuff for less money. Japanese cars are also more reliable than American cars, everybody knows that. Anything coming from Samsung is also unexpectedly reliable and functional for it's price. Dunno about vacuum cleaners but my made in china Miele is still working fine.

  • @FaraazKhanOfficial
    @FaraazKhanOfficial 5 лет назад +5

    This is the most precious video i have ever seen

  • @Sunnyvale877
    @Sunnyvale877 5 лет назад +5

    Cool training video! I’m impressed by this hard core science... Thanks for a down to earth Techincal aspects of crystal growth explained.

  • @mrdovie47
    @mrdovie47 11 месяцев назад

    An old technician told me he could look at Vacuum tubes of the same type and they all matched each other in specs, but transistors were all different even with the same numbers. This video explains why that is, Thanks!

  • @rohnkd4hct260
    @rohnkd4hct260 5 лет назад +4

    brings back many memories of my electronics school days. I remember going to Western Electronic Labs in NC ( want to say it was in Winston - Salem) I had sample of transistor with out the case. Wish I still had it.

  • @wilsonocasio8884
    @wilsonocasio8884 5 лет назад +4

    I’m just glad that there is some Japanese in me, I’m a mechanic and I have wrapped my body with towels and cut stuff many times and I still got 8 fingers!!!😜👨🏻‍🔧

  • @BarriosGroupie
    @BarriosGroupie 4 года назад +7

    Amazing that the technology was so primitive in the beginning, yet worked.

  • @PacoOtis
    @PacoOtis 2 года назад +1

    Bravo! What a statement to determination and resourcefulness! This video makes one rather proud of the human spirit! Thanks for sharing and the very best of luck!

  • @CraigMansfield
    @CraigMansfield 5 лет назад +5

    I love and admire their ingenuity.
    Necessity is the mother of invention.
    Ichiban!

  • @truthbydesign5146
    @truthbydesign5146 3 года назад +2

    No lone genius could have ever discovered something like the transistor on his own - major breakthroughs like this require enormous financial resources and the contributions of a team, focusing on all the interrelated fields.

  • @nooceluap7760
    @nooceluap7760 4 года назад +11

    Such a high level of Intelligence + tenacity. The masses benefit so much from the hard work of a relatively tiny number of dedicated people. These nerds awe me - and I write "nerds" with the utmost respect (not as a derogatory title but as the pure gold of humanity). Sure, profit was the goal at Sony, but still, hats off to the people that make things work.

    • @magg93
      @magg93 3 года назад

      They are nerds, but they also enjoy sexual intercourse with slightly aroused female specimen.

  • @83jbbentley
    @83jbbentley Год назад

    Proves the old adage, “where there’s a will there is a way.” True passion and determination.

  • @donmoore7785
    @donmoore7785 4 года назад +3

    Fascinating documentary. Love the accounts and memories of those involved, and the way they are translated into English.

  • @douro20
    @douro20 8 лет назад +59

    They don't talk about who created the process they used for growing single crystals. This was developed in the 1920s by Polish scientist Jan Czochralski.

    • @LT89NL
      @LT89NL 5 лет назад +7

      @LAFOLLETTER No they didn't. First of all, Enigma was the name of the rotary disk encryption machine that the Nazi's used for encrypting and decrypting top secret messages. It was Polish spies who managed to either steal or copy an Enigma machine and passed it onto the British smuggling it out of the country just before war broke out between Poland and Nazi Germany. So although Poland was of great help in the effort to crack Nazi Germany's Enigma code, the British where actually the ones who cracked the Enigma code.

    • @user-ks5ff
      @user-ks5ff 5 лет назад +3

      They cracked Enigma, before it got difficult, LOL

    • @user-ks5ff
      @user-ks5ff 5 лет назад +6

      LAFOLETTER, they cracked it before the Germans made it difficult to crack, the Germans added more variables to system making it much more complex, the British cracked this updated version of Enigma.

    • @PotionsMaster666
      @PotionsMaster666 5 лет назад +1

      Thanks for that info

    • @guesswho6038
      @guesswho6038 5 лет назад +1

      @@user-ks5ff Correct, the British advanced it a lot making great progress, but the Poles were the innovators in the field by applying mathematics to the area which was before domain of linguistics, thus paving the way.

  • @CastilloDelDiablo
    @CastilloDelDiablo 5 лет назад +4

    Great ingenuity using what they had, not what they needed.

  • @andyhowlett2231
    @andyhowlett2231 2 года назад +2

    'Oscillating crystals' had been noted by amateur experimenters as far back as the 1920's. While using Galena and other types of rectifying detectors in crystal radio receivers, some experimenters had used a small DC bias to increase the sensitivity. Many of them reported that under certain conditions, the circuit would burst into oscillation and cause heterodynes. However, it seems no-one followed it up.

  • @yoppindia
    @yoppindia 5 лет назад +7

    Patience and persistence is the key to success.

    • @ryanmalin
      @ryanmalin 5 лет назад

      And luck. Dont forget about luck.

    • @NeverTalkToCops1
      @NeverTalkToCops1 5 лет назад

      There are no keys to "success".

    • @magg93
      @magg93 3 года назад

      And large genetalia.. At least for success in reproductional field

  • @yusufmiftahudeen
    @yusufmiftahudeen Год назад +1

    This is a great lesson for people who are waiting for free sucess

  • @NickyNightShine
    @NickyNightShine 4 года назад +4

    38:45 It's wonderful to see the founder of Sony still alive at that time

  • @eco9LOG
    @eco9LOG 5 лет назад +1

    Wow a prog that actually shows you something in detail -fascinating

  • @jaimanohar
    @jaimanohar 3 года назад +2

    Huge respect to all involved for this great invention.

  • @davidnuttall374
    @davidnuttall374 9 месяцев назад

    So wonderful to see these lovely people worked so hard to build the things necessary to produce the items needed to reach their goal. Amazing people. Reminds me of other people that dreamed and designed, and became great...

  • @AaronSchwarz42
    @AaronSchwarz42 4 года назад +2

    Amazing history video about science, technology & economic history & cultural realities that paved the way to all this Telecom & technology so common today with smartphones etc
    We hold billions of transistors in our hands now, built on the shoulders of giants. An amazing history. Transistors radically improved energy efficiency of information technology vs vacuum tubes :)

  • @danosdotnl
    @danosdotnl Год назад

    What an amazing document! Thanks for uploading!

  • @HeriEystberg
    @HeriEystberg 4 года назад +4

    I find it funny how the translator included the laughter at 19:10! As if that needed translation :)

  • @gerardvaughan1847
    @gerardvaughan1847 5 лет назад +2

    100% for this, with all those amazing clips from so long ago, and the Actual men who were "boys" there back in the day.
    A "completely impossible" thing to make, now a few cents each, and hugely better performance. Completely unbelievable, yet true

  • @Chrissy4605
    @Chrissy4605 5 лет назад +4

    Very well made documentary!!!

  • @osvaldocristo
    @osvaldocristo 7 лет назад +1

    Thank you very much to publish so great documentary!

  • @abubakaromar2826
    @abubakaromar2826 8 лет назад +8

    This is an amazing birth of Transistor that led to the development of our modern technologies. Thank to you all for the great contribution in technology :)

  • @pitsmcgoo
    @pitsmcgoo Год назад

    Very informative corrected a lot of misconceptions I had.

  • @spambot7110
    @spambot7110 5 лет назад +5

    3:11 - "the vacuum tube's drawback, however, was its short lifespan". Yes, that was the one single downside. Power requirements, physical size, voltage requirements, gain, none of those were drawbacks.

    • @skateboarding118
      @skateboarding118 5 лет назад +1

      Yet a lot of those factors are why vacuum tubes are still used in the best guitar/bass amplifiers

    • @NeverTalkToCops1
      @NeverTalkToCops1 5 лет назад +1

      @@skateboarding118 NONE of those "factors" of tubes are the reason why tubes are used in musical amplifiers.

    • @gunzmith29r
      @gunzmith29r 5 лет назад +2

      and now power tubes are expensive as hell and to think i threw away washtubs full of good ones long ago

  • @MAdenilson
    @MAdenilson Год назад +2

    Saudações.
    Estou grato por haver canais desse tipo, que nos trazem informação direto do chão de fábrica, mesmo que dos primórdios!
    Sou entusiasta de elétrica e estudando alguns aspectos das aplicações de eletrônica, sempre que chegava na parte de explicação sa "dopagem", os professores desenhavam, mas não exclareciam sobre esse assunto, no vídeo é possível visualizar claramente o processo de dopagem do material para confecção da camada de base do transistor.
    Salve! 💯

  • @RCAvhstape
    @RCAvhstape 8 лет назад +46

    29:15 "Transistor Girls" sounds like good name for an anime.

    • @Catcrumbs
      @Catcrumbs 7 лет назад +5

      I'm still waiting for the manga to be translated. 30:59

    • @EngineeringFun
      @EngineeringFun 6 лет назад +6

      Big boobs transistor girls and transistor girls with panties were important search terms in the pre-internet era.

    • @Raul_Gajadhar
      @Raul_Gajadhar 5 лет назад +1

      And to you know who were the "Calutron Girls" Look it up it has a lot to do with Japan too. One difference is they worked 24 hours shift just get a package ready for Japan. Women are the best at production line work, they may not be as strong as men but they have steady hands, clearer heads. I would never make fun of the Transistor Girls.

    • @thewhitemustang
      @thewhitemustang 5 лет назад

      Helium Road - Just a little tip, when you lay down a time stamp it's polite to set it for a few seconds before the event. 28:09 is a bit more like it. 29:15 has all of us waiting for it and it never comes because it already happened a few seconds earlier.

    • @Morkvonork
      @Morkvonork 5 лет назад +3

      Transistor-Chan!

  • @markwebcraft
    @markwebcraft 2 года назад +2

    "We just shined a light onto the temperature gauge needle for 10x better accuracy", how clever these guys were is remarkable.

    • @samuraijosh1595
      @samuraijosh1595 Год назад

      they just solved the problem using analog machine-related thinking right??

  • @debo4898
    @debo4898 5 лет назад +31

    Japan perfected electronic ideas and inventions that American Corporations did not want to invest in.

    • @MrDoneboy
      @MrDoneboy 4 года назад +2

      Only when it came to commercial uses, my friend! We invented the integrated circuit!

    • @Autojones
      @Autojones 3 года назад

      @@MrDoneboy Exactly, Like Texas instruments, Motorola, Sprague', Tung-sol, ect Didn't make major developments in transistors. we had to wait for the Japanese to do it for us .. wink wink. well, nice fantasy anyway.

    • @samuraijosh1595
      @samuraijosh1595 Год назад

      @@Autojones we were really just shit.

    • @Autojones
      @Autojones Год назад

      @@samuraijosh1595 Correct ,you were. but we were not.

  • @richcollins513
    @richcollins513 Год назад +1

    The first working device was a point-contact transistor invented in 1947 by physicists John Bardeen, Walter Brattain, and William Shockley at Bell Labs

  • @shifter65
    @shifter65 4 года назад +3

    16:00 Whoa, that's some impressive problem solving!

  • @garygranato9164
    @garygranato9164 Год назад

    thank you for uploading this wonderful video

  •  6 лет назад +30

    Another example of how most people including myself know nothing.

    • @Autojones
      @Autojones 3 года назад

      @ki gi Oh so saintly virtue signaler ... look up the massacre of Nanjing.

  • @aaroncake
    @aaroncake 5 лет назад +1

    Wow! I have a 2N104EH in my bin of old transistors. Had no idea it was the first. Now, to figure out the best way to display it.

    • @craigwall9536
      @craigwall9536 4 года назад

      Nipple ring.

    • @aaroncake
      @aaroncake 4 года назад

      @@craigwall9536 That wouldn't work. For nipple rings I'd need two more.

    • @dreck66666
      @dreck66666 Год назад

      Nice👍, there are some rare ones out there, I have a 2NC010 transistor from 1955. Its worth 1000$ and was one of the first transistors of a big german company.

  • @danielodors
    @danielodors 5 лет назад +7

    Imagine how fast they were working on their research. You'd have to run into a beam to be knocked out.

    • @user-mp3eq6ir5b
      @user-mp3eq6ir5b 5 лет назад

      Daniel Martinez ☆ We had a Clubhouse when we were kids, the doorway was at chest level, so I drew a picture of Donald Duck on it. Saved the wear & tear some.

  • @schitlipz
    @schitlipz 2 года назад

    Awesome video! Just awesome.

  • @diman75
    @diman75 5 лет назад +4

    This is fascinating!!!

    • @magg93
      @magg93 3 года назад

      The length of my genetal-area is also quite fascinating, I can tell you this much.

  • @jacobmarley2417
    @jacobmarley2417 4 года назад +1

    Thank you for uploading this

  • @RC-nq7mg
    @RC-nq7mg  Год назад +10

    For all of those interested I am currently re-capturing these for a new higher quality upload. This original capture was made back in 2007, on a sub par capture card. It was captured in MPEG and the deinterlacing was poor. The new captures will be done raw and deinterlaced and uploaded in h265. It should result in a sharper more clear picture. Keep in mind this tape is a copy off of a copy I found at our local Japanese cultural centre back when i was in high school made tape to tape with two VHS decks. The tape was new but not the best quality, and dubbed at LP/EP speed. I do not recall if the tape i copied from was recorded in LP/EP or SLP. Trying to preserve this in as best quality I can before the tape degrades. Heads on the VHS deck were cleaned prior to capture. I have been attempting to capture this over the past few months but have had issues with audio sync and frame drops that I thik I have figured out. I will not remove the original uploads simply re-upload and create a new playlist. No colour/contrast correction etc will be applied, only deinterlacing to produce a progressive upload. The video bitrate of the original captures was 1039kbps, limited by the Gigabytes of storage I had back in the day. Now with Terabytes at my disposal I can capture RAW to hopefully produce the best possible video for upload.

    • @cpufreak101
      @cpufreak101 Год назад

      will you reup to this channel?

    • @RC-nq7mg
      @RC-nq7mg  Год назад +1

      ​@@cpufreak101 On this channel.

    • @RC-nq7mg
      @RC-nq7mg  Год назад +1

      Captures have been made. Verifying integrity and a/v sync, splitting and trimming video files, next comes the H265 encoding and then upload. Again quality is not superb considering the quality of the tape, tape speed used in recording, the original source tape which itself was a duplicate with source unknown, and the quality of the VHS decks I had at the time to make the copy. One was my parents fairly new for the time (2002ish model) sony, the other was my old front loading wood grained hitachi hifi deck from the late 80s early 90s. I made these dubs and original captures when I was 13-15yrs old.

    • @RC-nq7mg
      @RC-nq7mg  Год назад +1

      First video is done rendering, looks as good as it will get. Upload tomorrow. The other 3 to follow.

    • @RC-nq7mg
      @RC-nq7mg  Год назад

      First one is up. ruclips.net/video/XLlIb_p11cM/видео.html

  • @AbdiPianoChannel
    @AbdiPianoChannel Месяц назад

    I worked as servers and Honeywell circuit biards and motherboard technician in 2007. We use SMT machines hand soldiering stations similar to this one in the video.