Repair: Fluke 5700A Multifunction Calibrator

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  • čas přidán 27. 06. 2024
  • Fast and affordable PCB prototyping services by jlcpcb.com/
    Banggood Scope meter bit.ly/30fTv28
    Beginner Calibrators :) www.welectron.com/DMMCheck-Pl...
    Behind the scenes sometimes / marcoreps
    MDP-XP Tantalum Vaporizer now cheaper: bit.ly/2kM1uCv
    With coupon code BGMN7954
    Keyboard PCB project and some other files: github.com/marcoreps/5700A
    00:00 Intro
    02:18 A18 Filter repair
    07:13 Display problems
    09:17 Front panel
    13:28 Simple chores
    16:50 A17 Reg / Guard Crossing
    18:18 A11 PWM DAC
    20:34 A10 Ohms Main Assembly
    21:13 A9 Ohms Cal Assembly
    21:55 A8 Switch Matrix
    22:45 A7 Current / Hi Res Osc
    24:02 A13 Osc Output
    24:59 A12 Osc Control
    26:49 A16 Power Amp
    28:09 A15 HV / High Current
    30:18 A14 HV Control
    31:43 Conclusions
    35:33 Finally some magic smoke
    In order of appearance:
    PTB Imagefilm • PTB Imagefilm
    Fluke 5730A Introduction • 5730A Multifunction Ca...
    'Metrology food chain' article xdevs.com/article/si2019/
    Fluke 5700A service manual eu.flukecal.com/literature/pr...
    Huge USB VFD de.rs-online.com/web/p/fluore...
    Keyboard PCB, handles & more github.com/marcoreps/5700A
    Browser Circuit Simulator www.falstad.com/circuit/circu...
    Fluke 5790A AC Measurement Standard xdevs.com/fix/f5790a/
    xDevs 5700A calibrator review and service xdevs.com/fix/f5700a/
    Applied Science ultrasonic soldering • Ultrasonic soldering b...
  • Věda a technologie

Komentáře • 547

  • @tomwimmenhove4652
    @tomwimmenhove4652 Před 3 lety +468

    Oh no, enemy's' potted.

    • @reps
      @reps  Před 3 lety +149

      ogod I missed that opportunity

    • @Spirit532
      @Spirit532 Před 3 lety +26

      There it is, that's the comment. You win the internet.

    • @kennethhicks2113
      @kennethhicks2113 Před 3 lety +4

      Man I hated that stuff! But I'd gladly take it over the epoxy they seal stuff up with today... hehe and find myself using silicone rtv as potting compound for stuff today!

    • @danielfogli1760
      @danielfogli1760 Před 3 lety +3

      @@reps I can't believe it wasn't intentional 🤣

  • @VerseusTahl
    @VerseusTahl Před 3 lety +395

    This Old Marco Reps has returned!

  • @stennisrl
    @stennisrl Před 3 lety +441

    "...being extra careful not to bend any leads"
    _EEPROM tombstones in socket_

    • @athf226
      @athf226 Před 3 lety +24

      I let out a belly laugh.

    • @afsdfadsgsffghgdh3
      @afsdfadsgsffghgdh3 Před 3 lety +21

      then "cured" them (and erased some handles)

    • @frollard
      @frollard Před 3 lety +54

      This level of comedy is illegal in Germany. I'm sending the police.

    • @Cuddles23
      @Cuddles23 Před 3 lety +1

      yep, that had me rolling

    • @cncgeneral
      @cncgeneral Před 3 lety +2

      I made an odd yelping noise at this point

  • @TheDavidsonary
    @TheDavidsonary Před 3 lety +134

    That EEPROM bit caused me severe physical pain

    • @reps
      @reps  Před 3 lety +50

      same tbh

    • @bfx8185
      @bfx8185 Před 3 lety

      Near the heart attack :D

  • @matth8355
    @matth8355 Před 3 lety +88

    "Being extra Careful not to bend any leads..." *cuts away* 😂👌🏻

    • @Mosfet510
      @Mosfet510 Před 3 lety +2

      I cringed when I watched that! (Been there...)

  • @6AL-4V
    @6AL-4V Před 3 lety +107

    Marco, don’t be away for so long.

    • @reps
      @reps  Před 3 lety +125

      okay, next one in a few days :)

    • @benmodel5745
      @benmodel5745 Před 3 lety +26

      @@reps we are not worthy

    • @TheGodCold
      @TheGodCold Před 3 lety +12

      @@reps ok, i'll need to find more goats to sacrifice

    • @samdesplancke3906
      @samdesplancke3906 Před 3 lety +7

      @@TheGodCold wait what

    • @wesleymays1931
      @wesleymays1931 Před 3 lety

      @@samdesplancke3906 I'm pretty sure marco is actually THE God of electronics

  • @EnUsUserScreenname
    @EnUsUserScreenname Před 3 lety +68

    In *[ B I E G E L E H R E ]* we trust.

  • @KenColangelo
    @KenColangelo Před 3 lety +44

    Man, your sense of humor is DRY. I'm used to CZcams presentations where a clown comes out and hits the host with a pie if they make a joke. Keep up the great work!

    • @michael-gary-scott
      @michael-gary-scott Před 3 lety +9

      Easily one of the funniest channels out there. The perfect amount of humor to where you never expect it coming.

    • @Lrzingano
      @Lrzingano Před 3 lety +6

      That kind of humor is not so uncommon in Germany and is probably what makes many people that are not capable of getting it, give them the reputation of "not being funny"

    • @AsymptoteInverse
      @AsymptoteInverse Před 3 lety

      I thought British humor was dry, but they've got nothing on Germans, and I love it.

  • @G2bb101
    @G2bb101 Před 3 lety +27

    I understand NOTHING in your videos and haven't for some time but every time you post a new video I stop what I am doing because you make it so fun to watch!

    • @666Tomato666
      @666Tomato666 Před 2 lety

      oh, they simple: ppms good, carbon resistors bad

  • @Belrmar
    @Belrmar Před 3 lety +88

    The godlike amount of work that has gone into this video is probably hard to describe. Congratulations on such a good channel. Enjoyed this longer video a lot :)

  • @xDevscom_EE
    @xDevscom_EE Před 3 lety +65

    Now, that's the proper volt-nut stuff! I love these 5700 series calibrators. Too bad they have high-cost upkeep and now obsoleted for fancy LCD stuff...
    Dislike must be from somebody trying to buy one of these from epay cheaply... Expected prices after video now +1000% :D
    My heart still skips a beat watching Marco removing cans off oven hybrids. Memory of cracked unobtainable hybrid under it when cover went tilted still fresh....

    • @benmodel5745
      @benmodel5745 Před 3 lety

      The person calling Marco Reps the king doesn't know of the true king and his stacks of repaired 3458A's and 5700 series calibrators

    • @MrMilarepa108
      @MrMilarepa108 Před 3 lety +8

      Jesus Christ!!!! SEVENTEEN GRAND for a "refurbished" version.

    • @douro20
      @douro20 Před 3 lety +8

      @@MrMilarepa108 Back when the 5700A was new you could buy a very well equipped Cadillac...or a 5700A. And that's without any options.

  • @jrf2112swbellnet
    @jrf2112swbellnet Před 3 lety +12

    Marco, your videos are extraordinarily entertaining. All the puns, technical information, and slapstick are a joy to watch. I don't comment much on CZcams videos, but this one was just grand. Thank you for taking the time to create it.

  • @2STROKESTUFFING
    @2STROKESTUFFING Před 3 lety +123

    Funniest guy on youtube, hands down. And the other stuff is great too.

    • @simont3686
      @simont3686 Před 3 lety +1

      Ah, you're here too! Cool.

    • @2STROKESTUFFING
      @2STROKESTUFFING Před 3 lety +2

      @@simont3686 😁👍

    • @rarelycomments
      @rarelycomments Před 3 lety

      came for the electronics, stayed for the lols

    • @negumanezer
      @negumanezer Před 3 lety +1

      "Other stuff"?? I think he has very good understanding about electronics and topotology, how fluke engineers made that thing to work.

    • @2STROKESTUFFING
      @2STROKESTUFFING Před 3 lety

      @@negumanezer absolutely, was trying to be funny.

  • @thereare4lights137
    @thereare4lights137 Před 3 lety +4

    I just about fell off my chair at the Deadpool smoke sniffing reference! I love the smell of solder and flux in the morning. Smells like victory.

  • @prograMAnimus
    @prograMAnimus Před 3 lety +25

    I erased my handles and cured my EEPROMs. Almost missed that, had to do a doubletake :D

  • @dfgdfg_
    @dfgdfg_ Před rokem +1

    I don't understand electronics. This video helps my anxiety reduce and allows me to sleep.

  • @helmanfrow
    @helmanfrow Před 3 lety +6

    I'm still hovering at around 3% comprehension but I can't stop watching.

  • @Andres131995
    @Andres131995 Před 3 lety +2

    You know when as a kid you get bored of your toy until your friend plays with it?
    Yeah, you just made me love again my Fluke 8502A. Same beautiful modular construction, the boards are not just shielded: they have a plastic, VHS-looking case with a door for access to the test points. Thing of beauty!

  • @TG22222
    @TG22222 Před 3 lety +27

    After one month I can finally take a breath

  • @johansvideor
    @johansvideor Před 3 lety +7

    I immediately thought of "Mr. Bean: The Ultimate Disaster Movie" when I saw the cleaning rag moving towards those frail carbon keypad contacts. Poor Whistler's mother.

  • @RYU47376
    @RYU47376 Před 3 lety +7

    the moment we've all been waiting for, marco new videos

  • @ovalwingnut
    @ovalwingnut Před 3 lety +2

    Thank you. It was a privilege to get that deep into one of these Flukes 👍😎

  • @YahontAction
    @YahontAction Před 3 lety +4

    Круто! +1.
    Удивительно как для 88 года, такой многофункциональный девайс замутили флюковцы.
    Автор молодец капитальную работу провел по ремонту и наладке такого серьезного и сложного прибора!

  • @justinc.8191
    @justinc.8191 Před 3 lety +7

    I absolutely love your videos, you are the one that has brought me to my new job as an "Elektromaschinenbauer" it isn't exactly what you do but it has the right balance between electronics and metalwork for me.
    Thank you reps! ^^

  •  Před 3 lety +1

    I don't know why, even if i don't have a clue what he does in these videos, i always find this astonishing. The world of electrical engineering is so captivating...

  • @-repkid-4724
    @-repkid-4724 Před 3 lety +5

    Love the longer video, it was well worth the wait!

  • @Hilde_von_Derp
    @Hilde_von_Derp Před 2 lety

    Hug that sweet old lump of Fluke magic for me, and may it’s PPM’s ever be stable.

  • @ATX_Engineer
    @ATX_Engineer Před 3 lety +1

    Marco Reps video? Never clicked a video faster.

  • @themrchappi1
    @themrchappi1 Před rokem

    I watch this videos without any idea what you're talking about. Even more enjoyable when drunk!

  • @hexa6six
    @hexa6six Před 3 lety +4

    Ah, there it is: another wonderful video in a long time.
    Had the thing been given to me, I wouldn't have the slightest idea what to do with it. Even if this thing worked right away. And yet I always enjoy watching and being shown that such devices exist and that there is at least one person in the world who knows what to do with them and who treats them well. Biegelehre.

  • @Conservator.
    @Conservator. Před 3 lety +5

    14:17 Good to see you’re wearing your safety socks 🧦!

  • @macpr0c
    @macpr0c Před 3 lety +1

    26:47 Marco you could make a 5 hour video and not kidding the majority of us would literally watch every second of it. I mean for me they are the perfect videos to watch instead of working on my actual class projects, thanks for the lower gpa ! (p.s. lmao)

  • @SystemsPlanet
    @SystemsPlanet Před 3 lety +42

    A $10 ohm meter is accurate enough for me.

    • @petermuller608
      @petermuller608 Před 3 lety

      I just use an apple, it's mostly as accurate as an $10 Ohm metre ;)

    • @mfbfreak
      @mfbfreak Před 2 lety

      For many poeple, they absolutely are. If you repair equipment that runs on unregulated voltages, it doesn't matter if the figures behind the decimal point are accurate or not :)

  • @darkstatehk
    @darkstatehk Před 3 lety +1

    "...strong power supplies can sometime vaporize their problems before vaporizing themselves" *BRILLIANT!*

  • @rouuuk
    @rouuuk Před 3 lety

    U know whats scary? The amount of knowledge and the right description to each system from different technologies and eras .. that's remarkable

  • @KYBERWERK
    @KYBERWERK Před 3 lety +1

    I physically flinched at that EEPROM removal clip. Painful.
    And man, I love your videos. My favourite channel on this page, I'm always looking forward to the next video. Grüße aus dem Badnerland.

  • @pdrg
    @pdrg Před 3 lety +1

    Great to see you back on form

  • @Liam-ir6xm
    @Liam-ir6xm Před 3 lety

    Yes, i love the longer videos. Your long videos are great for kicking back with a drink and just relaxing while also learning stuff :D

  • @ronsampservice3066
    @ronsampservice3066 Před 2 lety

    I LOVE the "Being extra careful not to bend any leads"!

  • @joshmaxwell8767
    @joshmaxwell8767 Před 3 lety

    Just so it's clear. The only reason people should be tired during these videos ist becase they're watching at 6am after being up the whole darn night. Love the longer Videos :)
    Edit: It's 6am and I've been up all night.

  • @TouYubeTom
    @TouYubeTom Před 3 lety +1

    insultingly super interesting! keep the good work up. even has no interrupting ads - awesome!

  • @pine-Land
    @pine-Land Před 3 lety

    feels like I've waited forever for this new video, and let me tell you, the wait was worth it!

  • @flomojo2u
    @flomojo2u Před 3 lety

    LOVE the long videos! Another great one, looking forward to more volt nut goodness.

  • @matjesmeister2403
    @matjesmeister2403 Před 3 lety

    New video by Marco Reps. What a beautiful day!

  • @0zux45
    @0zux45 Před 3 lety

    There aren't many videos >30min where i haven't skipped even a single second, but this is one of them!

  • @dieterjosef
    @dieterjosef Před 3 lety

    Ich verstehe nur einen kleinen Teil von dem, was in dem Video an Elektronik passiert, aber es ist mir trotzdem eine Freude, so etwas anzuschauen. Videos wie Deine sind für mich das Besondere an CZcams und ich freue mich, dass Leute wie Du, die von irgendetwas sehr viel wissen, ihr Tun anderen zugänglich machen.

  • @sheep1ewe
    @sheep1ewe Před 3 lety +1

    Thank You for still making those awsome videos!

  • @EricMonroe7
    @EricMonroe7 Před 3 lety

    I love everything about this teardown and repair. Really appreciate the extra insight into the methods used in this device. The RMS measurement makes so much sense.

    • @emptech
      @emptech Před 3 lety +1

      In the 60's I remember working on some HP RMS voltmeters. The true way back then to measure RMS was to create heat with the AC signal. Then DC was applied to create the same amount of heat and the RMS voltage was determined from the DC. I can't remember what the module looked like. You pretty much said the same thing, the modules amplified the AC voltage, warmed an element, and the DC was applied to create the same heat. Don't recall, wouldn't be surprised it was in some kind of bridge circuit.

  • @John_Smith__
    @John_Smith__ Před 3 lety

    Awsome Video once again, and the precision measurement institute did a good thing donating to you the "scrap" equipment. Again with a huge amount of great humor! Congratulations.

  • @emanggitulah4319
    @emanggitulah4319 Před 3 lety

    Jawohl... Hat mich sehr gefreut mal wieder ein Video von dir zu sehen. Keeps up the great work

  • @RicardoPenders
    @RicardoPenders Před 3 lety

    Yet another awesome video from you, watched it till the end and I still want more of this so I'm gonna watch the second part too now. Thanks for sharing great content like this here on CZcams.

  • @LadyDePhage
    @LadyDePhage Před 3 lety

    We love the long videos, Marco! No yawning yet!

  • @user-jn9dl9px6r
    @user-jn9dl9px6r Před 2 lety

    Watching all the work being done, exhaust me.
    Fantastic job.

  • @globalns
    @globalns Před 2 lety

    I think that's one of the few video sponsor segments I've watched on any video, fantastic.

  • @leonalexander26
    @leonalexander26 Před 3 lety

    Endlich! Du hast uns ja schon vor einem halben Jahr damit gefoltert ;) :D

  • @thecoolface123
    @thecoolface123 Před 3 lety

    I love this content. The sponsorship is honest and beneficial to the demographic audience, the memes are top notch and the editing is fabulous. All of this layered on top of the mans gigantic brain makes that good good I do like.

  • @nicknackthenoo
    @nicknackthenoo Před 3 lety

    Wow, this was interesting. I used to use the Transmille 3200B and 3041A Calibrators. Seeing you attempt re-rejuvenation of this Fluke is impressive. Cheers Bud.

  • @killsalot78
    @killsalot78 Před 3 lety

    oh man marco I love your work, excellent vid, joke after joke, your attention to detail and sense of humor is 10/10

  • @TechneMoira
    @TechneMoira Před 3 lety

    I like your "Der Terminator" approach to solving problems hands-on... although if I had to do the same as you do for my channel, I would need a life-time of sponsoring *grin* I actually expected you to say "I'll be back" at the end of your video, which in turn made me smile throughout :) Wish I had the same capacity for dry German humor... either way, you made an entertaining (long) video, vielen Dank

  • @shaunstewart4064
    @shaunstewart4064 Před 3 lety

    Just brilliant! Absolutly loved this but didn't understand a word. Keep up the great work and glad to see you back.

  • @MrSchrodingersCat01
    @MrSchrodingersCat01 Před 3 lety

    Fantastic video as always and I am loving the longer format videos. More ppm pls

  • @emptech
    @emptech Před 3 lety

    I have a 5100B, haven't turned it on in a while, I'm afraid to. I wish I had the patience you have, but then, 50 years ago I probably did. Love it! Jim

  • @benbubeck1305
    @benbubeck1305 Před 3 lety +2

    Perfect morning to watch another great video.

  • @Etna.
    @Etna. Před 3 lety +6

    What a great thumbnail! Good job on the video, too! It is a joy to see such fully packed high quality measuring devices.
    Regards,
    Etna.

    • @reps
      @reps  Před 3 lety +6

      am a bit proud of that thumbnail, ngl :)

  • @brendanjensen1721
    @brendanjensen1721 Před 3 lety

    Holy cow. New favorite channel. Thank you for your knowledge!

  • @CANDiagnostic
    @CANDiagnostic Před 3 lety

    Thank you for taking the time to make this video

  • @LiquidAudio
    @LiquidAudio Před 3 lety

    I love equipment like this. Awesome video, as always!

  • @RuslanKoptiev
    @RuslanKoptiev Před 3 lety

    Marco, I missed you! Glad you are back :)

  • @jamwaffles
    @jamwaffles Před 3 lety

    The long videos are awesome! Please keep them coming, as long as you can be bothered to edit them of course :D

  • @alberthofmann420
    @alberthofmann420 Před 3 lety

    I love the longer videos!
    For me personally, they could last a trip lenght ;)

  • @mvadu
    @mvadu Před 3 lety

    No, no complaints on longer duration videos. Wishing you a laser resistance trimmer and a wire bonding machine before your RMS sensor fails. This is the first time i even heard of such a concept of measuring AC. Thank you for showing pinnacle of analogue electronics engineering..

  • @Kalanchoe1
    @Kalanchoe1 Před 3 lety

    you just keep getting better

  • @reecebeck971
    @reecebeck971 Před 3 lety +1

    Awesome! Finally an upload

  • @anononomous
    @anononomous Před 3 lety

    36 minutes?! Marco you are spoiling us.

  • @atta30
    @atta30 Před 3 lety

    Finaly a new video you have by far the most interesting electronics videos

  • @gljames24
    @gljames24 Před 3 lety +1

    Dual wielding soldering irons is pretty awesome.

  • @veritatas678
    @veritatas678 Před 3 lety

    Beautiful machine.I can feel the relais click-clack .
    Thanks for the video

  • @txm100
    @txm100 Před 3 lety +1

    I still do not really know what this thing is for but you made great and funny video :D

  • @MetrologyEngineer
    @MetrologyEngineer Před 3 lety

    19:57 I LOVE those laser trimmed resistors!!! Gorgeous.

  • @kirknelson156
    @kirknelson156 Před 3 lety +12

    I used to use the 5700A in a cal lab back in the early 90's, it was one of my favorite pieces of gear, mostly because of the HP bus that let it be controlled remotely and some cal jobs could be done almost fully automatically, just had to change the setup. I don't recall the name of the controller but it had the cal procedures on 5 1/4 floppy disks.

    • @droneforfun5384
      @droneforfun5384 Před měsícem

      Could you explain what the unit could be used for 😅

    • @kirknelson156
      @kirknelson156 Před měsícem

      @@droneforfun5384 its a multifunction calibrator used to calibrate voltmeters and multimeters, can output calibrated voltages both ac and dc, resistances and current also ac and dc.

  • @pomonabill220
    @pomonabill220 Před 3 lety

    WOW you lucky dog! Even though you had to basically rebuild it, just WOW!
    What a beautiful piece of equipment!

  • @unkatom
    @unkatom Před 3 lety

    Epic... simply epic.
    I barely know what this “device” does, but the examination was clear and... FUN!

  • @ohadreu6865
    @ohadreu6865 Před 3 lety +1

    Great content, Superb humor, Awesome video

  • @hullinstruments
    @hullinstruments Před 3 lety +26

    I know compressed air can send shards of molten solder all over the board… But if you pay careful attention as to the direction you’re pointing the compressed air tip… You can remove 99.5% of all solder with only about 35psi.
    I use an airbrush hose because it is soft and flexible and easy on my wrist, and one of those plastic pistol grip blow gun attachments. The blowgun is angled so it’s very comfortable and easy to access hard to reach places. And even though the blow nozzle hole is only a few millimeters in diameter…I attache a football inflating needle to the tip of the blow gun. So that the air opening is less than a millimeter. This gives me uncompromised control, accuracy, and power but with low pressure.
    The compressed air is narrowed into a very small stream. Anything over 50 psi and you risk blowing traces off of the board. I stay around 30psi
    This will remove shit tons more solder than the best hakko solder vacuum, or even the best solder wick. Not only does it remove all this older but it also allows very short heat soaking into the board itself. I use a cheap 40 W iron and I can remove a 16 pin Dip Chip in under 20 seconds. Even in thick multi layer boards.
    It literally just falls out the other side. So to recap.....no heat going into the board… And all of the solder is removed so it is stress-free. This helps those pesky traces stay where they’re supposed to be. Because even though pulling in prying can loosen traces… It’s not just stress from the component leads that makes the traces the laminate. It’s the heat soaking.
    Just set the circuitboard down in a shoebox or cardboard box so the splatter doesn’t spread all over your shop. And then check the board carefully under a microscope all over to make sure there are no splatters are shorting out components. (Which on expensive boards I’m sure you are doing anyway.)
    sometimes I am given the task to restore boards from a few of the local government facilities in my area… Boards that are in machines dating from the 70s and 80s. Boards that are pure unobtanium! Where replacements have never been available and the boards are “priceless“ as tools for these companies or agencies… This is by far the best method to remove 99.5% of the solder quickly and easily.
    I am nowhere near as advanced as you. But industrial equipment repair /calibration is my specialty. I certainly do not have your understanding of electronics theory. But several years of trial and error I’ve picked up a few things here and there. I love to watch your channel and keep learning!

    • @SystemsPlanet
      @SystemsPlanet Před 3 lety +1

      Wow, thanks for sharing.

    • @dreamcat4
      @dreamcat4 Před 3 lety

      Many thanks for this tip. How wise. Don't suppose you can also recommend specific attachment(s)? Would a PCL BG405 be suitable? Or perhaps a BGS 3215? I am confused because whether to get 1/4 inch BSPT or 1/8 inch hose diameter... or if it can be metal instead of plastic which is best. If you can let us know? We would really appreciate that thanks.

    • @hullinstruments
      @hullinstruments Před 3 lety

      @@dreamcat4 Glad to help anyway I can. Here is the exact pistol grip blowgun that I use. It is model number MP5143. I’v tried fancy ones and cheap ones… And the more lightweight the better!
      And Instead of a regular air hose, I use braided nylon airbrush hose. The five dollar harbor freight airbrush hose will be fine. I got lucky and got a brand name Paasche hose.
      The airbrush hoses are thin and usually only good to about 50 psi. They have a fabric covering and are super soft and flexible almost like silicone test leads.
      Because with regular regular rubber air hose it’s too heavy and puts too much strain on the wrist. Whether you’re salvaging parts for hours, or removing very delicate parts… Strain on the wrist not only hurts your arm and causes problems… But it also gives less control.
      I also install a sports ball inflation needle at the end of the blowgun to give extra control and an extremely narrow air jet. I cut a few millimeters off the needle tip so that I have only one hole coming out the end of the needle… Because most of the ball inflating needles have a small side hole which defeats the purpose of desoldering by allowing air to escape. I then shape and polish the end of the needle to a very fine rounded edge working from a file all the way up to a few thousand grit wet sandpaper and even buffing compound. so if I accidentally hit the board I don’t leave big scratches or gashes.

    • @hellelujahh
      @hellelujahh Před 3 lety

      Thanks for the tip!

    • @Graham_Wideman
      @Graham_Wideman Před 3 lety

      Great tip!

  • @uncelesteperro8258
    @uncelesteperro8258 Před 3 lety

    this channel is soooo underrated

  • @jond1536
    @jond1536 Před 3 lety

    At around 11.20 I have seen that sort of buttons before, TV Remote controls, GREAT VIDEOS Thanks for these great videos.....

  • @hypercomms2001
    @hypercomms2001 Před 2 lety

    I was part of the Fluke and Philip Alliance, and I remember the Fluke 5700A launch in Sydney, Australia in 1988.

  • @FesixGermany
    @FesixGermany Před 3 lety +5

    Burning away the problem... in Germany we call it "Freibrennen".
    When soldering power resistors to a PCB it is better to have a little distance to the PCB for better air flow and keeping the PCB cooler.

  • @j.t.johnston3048
    @j.t.johnston3048 Před 3 lety

    Some videos are too long, some videos are too short, but this video is just right!

  • @elektronikzmbrtlar1586

    Thank you for making my lesson break time fun

  • @nicolaetuns
    @nicolaetuns Před 3 lety

    As always, this video of yours was equally enriching and informative as it was entertaining .. I simply love your sense of humor: pure dry German humor, way better than English humor .. extremely hilarious!

  • @KamilK3
    @KamilK3 Před 3 lety

    Holy cow, you have so much knowledge Marco

  • @whatwillaguydo1186
    @whatwillaguydo1186 Před 3 lety

    This kind of content makes me want to go back in time and change from mechanical engineering to electrical

    • @cthoadmin7458
      @cthoadmin7458 Před 3 lety

      Makes we wish I hadn’t gotten out of electronic engineering many years ago and into software…

  • @ivolol
    @ivolol Před 3 lety

    The amount of research and knowledge being dropped second by second in a casual and Germanically indifferent way is gorgeous to see and hear. Even some random Counter Strike samples for light comedic relief. This machine has received so much love I'm sure it didn't expect! It would be cool to learn about some of the more "special" or "cared for" IC chips in this product (e.g all the ovenized ones...) what spec/design made them cool, if there is any modern day equivalent that just trumps them, etc. Also what the new cost for this machine might be, what a "fully functional" 2nd hand one one might cost, what your parts expense was for the repair, and what your hours of time invested was. The 35 minutes here as you said still seems shallow for the love invested in this project.
    It would also be great to hear what typical projects the original owner used this equipment for which made its cost worth it!

  • @QsTechService1
    @QsTechService1 Před 3 lety

    Wow that looks like a lot of work reconditioning that thing awesome videos you put out keep up the good work 👍

  • @hermannpaschulke1583
    @hermannpaschulke1583 Před 3 lety

    We once did a school trip to the PTB. It was very interesting :D

  • @DrFrank-xj9bc
    @DrFrank-xj9bc Před 3 lety

    Great job. Have fun with all these ppms.

  • @PatsAdventuresTravels
    @PatsAdventuresTravels Před 3 lety

    Wow! I used one of those in the Navy when I was in the Cal Lab.

  • @daviddevillers6790
    @daviddevillers6790 Před 3 lety

    glad i stayed for the fireworks! great video, marco!

  • @gbclab
    @gbclab Před 3 lety +1

    Welcome back my friend

    • @reps
      @reps  Před 3 lety +2

      thanks :)