Re: closed thread.

Discussion in 'General Electronics Chat' started by PackratKing, Dec 26, 2012.

  1. PackratKing

    Thread Starter Well-Known Member

    Jul 13, 2008
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    "Nado " had a thread asking about parallel resistors....

    My ? ... is about the Radio Shack slide-rule-type pocket "calculators" for parallel resistors.

    What is their accuracy, or margin for error, taking resistor tolerance into consideration......

    Anyone ?
     
  2. R!f@@

    AAC Fanatic!

    Apr 2, 2009
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    What is this all about?
     
  3. bertus

    Administrator

    Apr 5, 2008
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    Hello,

    I have returned the original post, wich was deleted by nado.
    MrChips made a remark, that the original post might help others too.
    To avoid deleting again, I closed the thread.

    I posted the original post into a quote and re-opened the thread

    Bertus
     
    Last edited: Dec 26, 2012
    PackratKing likes this.
  4. WBahn

    Moderator

    Mar 31, 2012
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    The tolerance of the components is peripheral to the accuracy of the calculator.

    The accuracy and precision (two different things) are dependent on a number of factors. The two biggest are how well it is manufactured and how carefully you use it. You can get a bit of a feel for both by considering you ability to resolve different values. For instance, if you were to set one of the resistances to 453.28Ω as best you can, what is the range of values that someone else, looking at where you put the slide, could conclude that the value of that resistor is? A similar test would be to do a few computations that produce results that should come out exactly on the provided marks. Do they? What is the range of values that someone could reasonably read the result as being.

    What you will almost certainly find is that the quality of the computation depends on the specific values used, particularly in cases where the computation is nonlinear.
     
    PackratKing likes this.
  5. strantor

    AAC Fanatic!

    Oct 3, 2010
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    How was this Nado able to delete his own thread? I cannot delete my own threads, even when nobody has replied to them yet. I even made a new thread to test it. Unless I am totally missing something, there is no option for it. How do you do it?
     
  6. MrChips

    Moderator

    Oct 2, 2009
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    He did not delete his thread. He altered the contents of the thread.

    Yes, you can delete your own thread.

    Edit -> Delete -> Delete Message -> Delete this Message
     
  7. strantor

    AAC Fanatic!

    Oct 3, 2010
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    This option does not appear when I click edit. see below:


    Before clicking edit:
    [​IMG]

    After clicking edit:
    [​IMG]
     
  8. MrChips

    Moderator

    Oct 2, 2009
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    Hmm, strange. I can't help you there.
    What do others see when the click on Edit?
    I see a "Delete" button between "Go Advanced" and "Cancel".
     
  9. strantor

    AAC Fanatic!

    Oct 3, 2010
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    I see the delete button when editing a reply in an existing thread. But not when I edit the original post. I believe this to be normal, except for mods. Although bill said he used to be able to do it before he was mod. I've never had the option to delete a thread.
     
  10. MrChips

    Moderator

    Oct 2, 2009
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    Maybe you are correct. Maybe you cannot delete the thread but you can delete your reply.
    I didn't test delete on the #1 post.
     
  11. bertus

    Administrator

    Apr 5, 2008
    15,648
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    Hello,

    He did not actualy delete the message, but edited it to the text "How can I delete this thread?".

    The information was lost to the members, but not to the moderators.

    Bertus
     
    PackratKing likes this.
  12. Wendy

    Moderator

    Mar 24, 2008
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    Did you try the go advanced? There are options there too.
     
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