Cheap Electronics Components from Amazon

แชร์
ฝัง
  • เผยแพร่เมื่อ 28 ม.ค. 2025

ความคิดเห็น • 34

  • @tedbastwock3810
    @tedbastwock3810 7 หลายเดือนก่อน +4

    Super helpful. I like your General Electronics playlist very much. Thank you for taking the time to share these with us.

    • @paulpkae
      @paulpkae  7 หลายเดือนก่อน

      Thanks. I'm glad you find it useful. Please make sure you Click Like and Subscribe it really jelps the channel. Cheers!

  • @TheOldmankk
    @TheOldmankk 3 หลายเดือนก่อน +1

    6:23, that was neat idea to DIY an attachment to my YUHUA Hot Air nozzle.

  • @gkdresden
    @gkdresden 5 หลายเดือนก่อน +1

    The interruptions in strip boards can easily be made using a drill of sufficient oversize by hand. A few turns and you have your interruption.

    • @paulpkae
      @paulpkae  5 หลายเดือนก่อน

      Thanks for the tip.

  • @DustinWatts
    @DustinWatts ปีที่แล้ว +1

    Kits, kits kits! I love kits! I would even say I have a small addiction :) Btw my favourite JST connector is the VH3.96mm is if make the board as well as the wire. Very nice fit and accept higher gauges so more current.

    • @paulpkae
      @paulpkae  ปีที่แล้ว +1

      Thanks for the comment. Yes, kits are a great way to try out a wide selection of similar components at a very reasonable cost. There is an abundance of them out there, but some are not so good as I have found out.

  • @hughblack3456
    @hughblack3456 14 วันที่ผ่านมา

    Thanks for this. Very basic but extremely good tips that could easily be overlooked. I'm going to buy a heat shrink tool right away. I didn't know something like that existed. No more lighters or heat guns for me!

    • @paulpkae
      @paulpkae  14 วันที่ผ่านมา

      Thanks for your comment. My heat gun is still going strong, used regularly and I can honestly say that model is great quality for the price.

  • @TheAMGReviewers
    @TheAMGReviewers ปีที่แล้ว +2

    a thing with heatshrinking cables. when you sleeve the cable, seperate the wire and heat the shrink, then use needle pliers to squish the shrink between the cores, it looks and feels more robust

    • @paulpkae
      @paulpkae  ปีที่แล้ว

      Thanks, I will give that a go.

  • @AJB2K3
    @AJB2K3 ปีที่แล้ว +1

    I have used single dip switches on boards where there is only 1 pin different in MC versions

  • @joefarr3304
    @joefarr3304 ปีที่แล้ว +9

    Ever wondered how Ebay and Amazon can sell packs of components so cheap? Be carful of fake components. These include components that just don't work, to ones that are marked incorrectly like capacitors with the wrong working voltage. It's not uncommon for the components to be ones that have failed quality control when manufactured, are bough cheap and then sold on as full specification. Same with breadboards. The cheap ones have some cheap tin for the electrical contacts and don't grab component leads correctly. Don't assume that components will work. If you can, test and/or measure their values before use. Invest in a cheap component tester(s).

    • @paulpkae
      @paulpkae  ปีที่แล้ว +5

      Thanks for your comment and yes I totally agree. This is why I regularly post product feedback reviews on Amazon and now started sharing my experiences through videos like this one.
      A lot of the time precision is not really critical, particularly with resistor and capacitor values. I tend to use cheap components (usually from kits) when experimenting and breadboarding stuff. Your breadboard has plenty of parasitic properties regardless of its quality anyway (resistance, capacitance and inductance).
      When you come to commit to something more permanent, then its worth investing in a more reliable supply source. If you have designed and built the circuit yourself, then you will know which components are the critical ones.

    • @JohnyRalte
      @JohnyRalte ปีที่แล้ว +2

      What if that cheap component tester is also a quality control reject 😂

    • @paulpkae
      @paulpkae  ปีที่แล้ว +1

      @@JohnyRalte haha! 😂
      Joking aside, the answer is to measure with at least two testers and compare the results. If precision is critical, then get your testers calibrated regularly by a certified test house (seek UKAS accredited organisations in the UK).
      Just to add, I have not had any disasters yet with cheap components, but I have had some quite expensive resistors from a very reputable supply, go open circuit in the last year.

    • @LimbaZero
      @LimbaZero ปีที่แล้ว +2

      I have seen some videos about fake 7805 regulators that can't deliver rated current. Also some electrolytic capacitor kits may have "adjusted" rated voltages. If used at rated voltages it would explode in few seconds.
      I think I need to do voltage test for my kit. At least one cap had leaked. Sad that I only have power that go to 30v.
      Mostly in hobby use question is "Is this suitable to project what I'm doing and how I need derate this component."

    • @paulpkae
      @paulpkae  ปีที่แล้ว +3

      @@LimbaZero thanks for your input. Interesting about the 7805, I use those quite often but rarely push them to anywhere near their rated current.
      Unfortunately, the world has pressurised the supply chain for many years, China in particular, for "cheap" products and this inevitably leads to poor quality. That said, there are many brilliant low cost products out there that work just fine and are well within most people's price range. The best thing we can all do is to provide honest feedback and share our experiences with others; good and bad.

  • @alexstone691
    @alexstone691 ปีที่แล้ว +1

    Damn that crimp tool is too expensive for a non ratcheting type

  • @goury
    @goury ปีที่แล้ว

    Actual tip: do not buy these "kit"s, instead just buy parts from a reputable supplier like mouser or lcsc.
    With these "kit"s you don't have a way to know what you're getting, but you can bet you're getting the cheapest garbage level crap there is.
    And you don't even know the proper names for these parts.
    You can have a lot more and lot better quality parts if you just buy parts.
    And you will know what exactly you're buying, with datasheets and all other kinds of sheets.
    And you can buy these plastic boxes for 10¢ a piece if you need them.
    If you need some parts and you don't know the proper name and thus having problems finding it, feel free to ask me, I'll help.

    • @goury
      @goury ปีที่แล้ว

      Same goes for tubes: you can have a whole roll for the price of a "kit".
      And it's much more usable when you cut it yourself to whatever length you need.
      Same goes for PCBs, just ordering from jlcpcb or pcbway is by an order of magnitude cheaper and you can have em in any size and/or shape you wish.
      And also color, thichkess, material, silkscreen and whatever else you may imagine.

    • @goury
      @goury ปีที่แล้ว

      As for inductors, buy some actual inductors that can induce some electromagnetism.
      Or just wire and cores and make your own if you feel adventurous.
      These tiny tube inductors are useless for anything that require some meaningful inductance, you won't ever be able to make a boost converter with these.

  • @BigG-s5l
    @BigG-s5l ปีที่แล้ว

    That is most definitely NOT the correct tool for JST>

    • @paulpkae
      @paulpkae  ปีที่แล้ว

      I have tried various others and found this one works fine for me. Do you have a recommendation you can share?

    • @LarsonGuitarPlayer
      @LarsonGuitarPlayer ปีที่แล้ว +1

      Great! I've been trying to put together a shopping list for some projects for over a month. This will help.
      Happy New Year!

    • @paulpkae
      @paulpkae  ปีที่แล้ว +1

      @@LarsonGuitarPlayer hope you enjoy. If you are buying any of the items shown, please use the links in my description. It does not cost you a penny more, but goes a small way to help this channel going. Happy New Year!!!!!🎉

    • @LimbaZero
      @LimbaZero ปีที่แล้ว +1

      I got my crimping tool included with JST + Dupond kit. It's those ratcheting crimping tools that do both sections at same time.
      It seems that kit is not available anymore. Tool is Aueide SN-02BM and I'm pretty happy with results.

    • @paulpkae
      @paulpkae  ปีที่แล้ว +1

      @@LimbaZero Thanks. The PA-09 tool shown does indeed require two crimps to complete each core and it can be quite tricky, but once you have done a few it works well. The more expensive ratchet type would be better and have the added bonus of providing better control over the crimping pressure that gets applied.