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diodes/Viewport? — Parallax Forums

diodes/Viewport?

rjo_rjo_ Posts: 1,825
edited 2009-02-24 02:40 in General Discussion
Oldbit posted a question about diodes, to which I thought I had a good answer... but of course I didn't know for sure.
The issue became... which diode did I use... turns out that I had the circuit right in front of me so I picked it up, looked at the
diode and then went through my fish and tackle box to find the package... which was missing.

So, I decided to "test" the diode with my multimeter, but the only thing I could do with it was to measure the voltage drop across it. That didn't tell me very much. So, this morning I went to RadioShack and found the right one, purchased it for about
3 yen and returned home.

When I took a close look... there were no "specs" on the at all... just a part number from RadioShack and a product number
1n914.

Then I went to Fairchild and downloaded the DataSheet...and by golly, there really are specs, everything from soup to nuts.

If I wanted to test a diode and get the same kinds of data that Fairchild gives... what would I need? Is this the sort of thing that is available to hobbyists?

Would ViewPort be useful?



Rich

Comments

  • Mike2545Mike2545 Posts: 433
    edited 2009-02-24 01:17
    Long before the internet I have assembled a good collection of books that hold the keys to the doors of P & N and everything in between. I have found The Semiconductor Data Library useful in these types of situations. As far as testing just the multi-meter to see if its good.

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    Mike2545

    This message sent to you on 100% recycled electrons.
  • rjo_rjo_ Posts: 1,825
    edited 2009-02-24 01:35
    Mike,

    Thanks. The goal is to be able to take a diode and create the equivalent of a spec sheet. So, the issue becomes one of instrumentation. My impression was that there was a ViewPort/hardware combo that might fit the bill and was looking for a yea or nay on the subject... or a better idea. I might have to break it down and approach it one step at a time.

    Rich
  • Mike2545Mike2545 Posts: 433
    edited 2009-02-24 01:47
    I see the book that I mentioned on Amazon starting at $2

    In order to get maximum power ratings/voltages and even tolerance with some sort of hardware/software combo you may need to sacrifice a component in the process. I think having a book or looking them up on line is the best way to go.

    If your like I am, a book is preferred over the internet any day.

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    Mike2545

    This message sent to you on 100% recycled electrons.
  • rjo_rjo_ Posts: 1,825
    edited 2009-02-24 02:40
    It is on my list.

    I absolutely love books. One of the problems with living in nowhere is that I have to travel a long way to get to a good technical bookstore... and they have the habit of going out of business.

    I don't mind sacrificing components... and frankly, it would feel good to do it on purpose. Most of the time the components I would use are so well documented that there is really no need to measure anything, just make sure they aren't broke. There are some holes in my understanding that I think I can fill by going this route.

    My Prop room is beginning to look like it needs an EE pathologist. I have a couple of protoboards that I killed, but they aren't completely dead[noparse]:)[/noparse]

    Good to see that you are into recycling[noparse]:)[/noparse]
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