| Electronics > Beginners |
| Purchasing parts and basic components for a new lab |
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| tooki:
In modern electronics manufacturing, "binning" means sorting components by value. High-end white LEDs for lighting applications, for example, are binned (by the LED maker) by their exact white balance, so that if you are a lamp manufacturer, you can say "I need more 2900K, bin 14" to match the bin 14 LEDs you used in prior batches, to ensure the white balance is exactly the same. Electronics manufacturers (that is, ones buying components) will sometimes bin critical components that need to be matched more precisely than the component manufacturer is willing to do. So for example they might buy transistors and then characterize them very precisely so they can create matched pairs. Of course, we don't know what rhb meant unless they come back and clarify whether they meant sorting by value or storing in bins. (I assume it's safe to assume they weren't throwing them away. ;) ) |
| AnyNameWillDo:
--- Quote from: Z80 on July 27, 2018, 09:07:56 am ---It's great to see you so enthusiastic about starting out but try and resist the temptation to buy everything you see. To give you an idea, I have been doing electronics / computing for over 30 years both as a hobby and professionally and still end up having to order parts for most projects. Even if money & space aren't a problem you just end up losing track of stuff and find yourself buying them again ;D It would be great to see you build some stuff and maybe post your progress. PS be wary of buying silicon from ebay, there are a lot of fake parts which won't help your learning. --- End quote --- I'm assuming by "silicon" you're referring to ICs? If so then yes, I mostly plan to buy my ICs from DigiKey -- it's just too convenient and they have so many parts. The basic random components (resistors, transistors, capacitors, etc) I just got the big bags/kits from ebay (which are still on their way). If I were to ever give someone a finished product I assume I could order nicer parts from e.g. Digikey. |
| ez24:
--- Quote from: tooki on July 27, 2018, 09:07:10 am ---Also, a good happy medium for some components is Tayda Electronics from Thailand. They’re not as cheap as Chinese vendors, but they also arrive in a week or less, vs 1-4 weeks for China. --- End quote --- I have heard others here say good things about Tayda. Check out their kits https://www.taydaelectronics.com/electronic-kits.html Looks like they come with docs (rare with Ali) I think they would make good learning tools. Once you put it together you could use your new scope to trace the signals. Then you can destroy or remove components to troubleshoot. And then use your new components to make repairs. They say they use "Preformatted board " not etched. I do not know what this means ? Anyone ? |
| jpb:
--- Quote from: ez24 on July 27, 2018, 07:25:56 pm ---They say they use "Preformatted board " not etched. I do not know what this means ? Anyone ? --- End quote --- I guess this means perforated board, i.e. board with a grid of holes in (perhaps with copper around each hole). Perhaps something like this: https://www.amazon.co.uk/SODIAL-6x8cm-perforated-printed-circuit/dp/B01L1PNCC0?SubscriptionId=AKIAILSHYYTFIVPWUY6Q&tag=duckduckgo-ffnt-uk-21&linkCode=xm2&camp=2025&creative=165953&creativeASIN=B01L1PNCC0 |
| ez24:
--- Quote from: jpb on July 27, 2018, 08:32:53 pm --- --- Quote from: ez24 on July 27, 2018, 07:25:56 pm ---They say they use "Preformatted board " not etched. I do not know what this means ? Anyone ? --- End quote --- I guess this means perforated board, i.e. board with a grid of holes in (perhaps with copper around each hole). Perhaps something like this: --- End quote --- I thought this also but I think perf boards are hard to work with, especially if you have to cut traces. It takes more skill than a normal board. If no answer in a few days, I will make a post on this question. Someone must have used their kits and if not I may buy one. |
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