ge application notes

Discussion in 'Electronics Resources' started by kagolu, Nov 19, 2008.

  1. kagolu

    Thread Starter New Member

    Nov 19, 2008
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    Hello All,
    New to the forum.

    Does anyone know where I can find old GE application notes? Specifically I'm looking for "Regulated Battery Chargers Using the Silicon Controlled Rectifier" D.R. Grafham, General Electric Company, Auburn , N.Y. Application Note 200.33. It was was foot noted in the GE SCR Manual 6th edition.
    I can't find it anywhere.

    Thanks
    Kagolu
     
  2. beenthere

    Retired Moderator

    Apr 20, 2004
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  3. Dave

    Retired Moderator

    Nov 17, 2003
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    It is often the case that the old application notes are not in open circulation. Depending on the production status of the design you could always approach GE's tech records department and ask if they could provide you a copy (restricted or otherwise).

    Dave
     
  4. kagolu

    Thread Starter New Member

    Nov 19, 2008
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    Thanks for the info. I'll it a shot.
    I'll check out the battery charger thread as well but I'm looking to build adjustable(0-60 volt) 50 amp SCR controlled shop charger on large lead acid batteries.
     
  5. KMoffett

    AAC Fanatic!

    Dec 19, 2007
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    kagolu,

    I think I may have that GE databook. It was the first one ever I acquired, and I built that battery charger. I finally threw the remains of it (the charger) out a couple of weeks ago.

    I'll check at home tonight.

    Ken
     
  6. beenthere

    Retired Moderator

    Apr 20, 2004
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    Hope you kept the transformer.
     
  7. kagolu

    Thread Starter New Member

    Nov 19, 2008
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    Thanks Ken, Let me Know.
    Don

     
  8. KMoffett

    AAC Fanatic!

    Dec 19, 2007
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    kagolu,

    Went to the deep, dark basement this morning and searched my book shelves...but to no avail. :( Can't believe I pitched that one...sort of an heirloom...from an old radio station engineer, when I first got interested in electronics. Back when data sheets were written in cuneiform (it looked like that to me) on papyrus scrolls. ;)

    Ken
     
  9. kagolu

    Thread Starter New Member

    Nov 19, 2008
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    Thanks anyway Ken, I appreciate you taking the the time to look for it. If I do find it I'll make sure I'll post it so you can get a copy.
    Kagolu
     
  10. davebee

    Well-Known Member

    Oct 22, 2008
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    I have an old GE SCR Hobby Manual, First Edition that includes a circuit by this name as a chapter, and D. R. Grafham is listed as a contributor to the book; maybe it was the source of the app note.

    Here's a copy of the two page article. I don't have much in the way of image editing software so it's kind of raw but should be readable - is this what you were looking for?

    (I hope I'm not violating copyright by copying two pages)
     
  11. kagolu

    Thread Starter New Member

    Nov 19, 2008
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    Davebee,
    Thank you, I'm not sure if these are the complete notes but it will help.
    Kagolu
     
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