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Thread: Need Your Help For Sproggy Builders

  1. 07-25-2002, 12:48 PM #1
    GuRuGoD
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    Need Your Help For Sproggy Builders

    After extensive searching and reading old posts on where to find the following parts for the sproggy mk2.8 psu-

    MAX787CCK
    MAX788CCK
    LM2587-12T
    T6 transformer
    47uH Inductor
    10uH inductor

    I decided to compile a list of costs, availability,part numbers, distributers, etc for each one of the parts. If you have i purchased or recieved a sample of one of these products successfully and had it working in a sproggy psu, please give me the following information.
    1)Who did you buy it from?
    2)What is thier website?
    3)Can you order online?
    4)Do they ship internationally?
    5)If not, where do they ship to?
    6)Do they give out samples?
    7)What is normal cost?
    8)What does shipping cost?
    9)Do you have to buy in bulk?
    10)Was shipping fast?
    11)Did the part fit the sproggy PCB without modification?
    12)If not, what modification specifically was required?
    NEW!!! 13)What is the part number from that company?

    Also, if you know of general acceptable stats for any of the parts (ie most 47uh inductors will work as long as they are over 5amps), I would also like that info. If you can chime in via post, PM, or email and answer as many of these questions as possible, I would be happy to compile a list of availability and post it for everyone. I think most people know how difficult it is to round up these parts quickely sometime. Thank you in advance.
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  2. 07-25-2002, 07:37 PM #2
    zeptik
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    MAX787/788 CCK/ECK

    1) Maxim/Dallas Semiconductor
    2) www.maxim-ic.com
    3) Yep
    4) Yep
    5) Dunno
    6) Yep
    7) $4.52 @1K
    8) Free if you order sample (reg. air mail from the UK in my case)
    9) Dunno
    10) About 1 week for the samples
    11) Yep
    12) Errr...

    Props out to Maxim. I didn't get what I asked for, but even better; they sent me 2x787 and 2x788, both ECK when I wanted the CCK-version (ECK have wider operating temps).
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  3. 07-25-2002, 07:41 PM #3
    GuRuGoD
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    thanks zeptik. now i know more of you have purchsed parts for sproggys and a lot of you still have questions, the more info you guys throw at me, the more you will get back. I plan to compile this info and release it for newbies and those having difficulty getting parts. PLEASE POST!
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  4. 07-26-2002, 03:27 AM #4
    THEMP3KID
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    47uH inductors:

    1)Gowanda (free sample)
    2)www.gowanda.com
    3)Yep
    4)Yep (I think so)
    5)---------
    6)well, DUH!!!
    7)ummm... can't help ya there
    8)yeah, free for free samples
    9)dunno
    10)ahh, don't think it was that CRASH hot.... and, they only give 1 sample of each part at a a time..
    11)No, it did not.. :P
    12)The holes had to be enlarged, and the leads bent at a sort of funny angle, also, some "wangling" was needed to get em to fit around the capacitors...


    10uH inductor:

    I just used 2 of the black heatshrunk inductors used in a normal AC-DC powersupply to filter teh 12volts for the second time... they work fine, and cost NOTHING!!!

    1)got it from an old computer powersupply..
    2)NOPE
    3)NOPE
    4)NOPE
    5)NOPE
    6)NOPE
    7)FREE!!!
    8)FREE!!!
    9)NOPE
    10)NOPE
    11)YES
    12)NOPE
    2 week temp ban (spam and complaining about deleted posts)
    register another account and you're gone for good.
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  5. 07-26-2002, 09:27 AM #5
    Aaron Cake
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    Don't pester companies for free samples unless you are willing to commit to buying a large supply (>1000 units) of the parts. If you just want one, buy it. Taking advantage of the free sample policy raises the price for all paying customers. And, if enough people request free samples, they will refuse to provide them. It's happened before.
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  6. 07-26-2002, 09:30 AM #6
    GuRuGoD
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    Aaron has a good point. Hopefully if i can get enough info on these parts, we wont have to worry about getting free stuff, we can just get cheap stuff.
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  7. 07-26-2002, 07:05 PM #7
    GuRuGoD
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    Ok, seriously... I keep getting pm's about where to get this stuff. I NEED INPUT! I think it would benifit a lot of people. Any help guys?
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  8. 07-28-2002, 01:44 AM #8
    Paladin
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    Gurugod,
    If u happen to get any pm's from those who are in Malaysia or singapore, get them to pm me instead. I've all the contacts for this region so i would be able to help them.


    Paladin
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  9. 07-28-2002, 11:20 PM #9
    mobes
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    47uH Inductor

    47uH Inductor

    1)Mouser
    2)http://www.mouser.com
    3)Yup
    4)Yup
    5)N/A
    6)No
    7)$2.49
    8)Varies, starts at $6 per order
    9)Nope
    10)Yes, you can choose your shipping option and they have both east and west coast branches, shipped same day
    11)Yes, it is the exact part number.
    12)N/A
    13)580-1447383

    Hope that helps... I just found it in their catalog yesterday.
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  10. 08-05-2002, 10:40 AM #10
    GuRuGoD
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    Bump
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