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Diode Question

Discussion in 'Electronic Basics' started by Brian Molnar, Apr 10, 2004.

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  1. Brian Molnar

    Brian Molnar Guest

    I have an old diode, I'm pretty sure it's a diode, from the late sixties
    that's labelled 1449 GE, I looked all over the internet and can't find any
    info on this diode. I have to replace this in an old piece of equipment, so
    I was gonna buy a substitute for it and I just want to make sure I can find
    one with the same or very similar specs. If anyone has any specs on this
    diode, or knows of a good substitute, or even where I could buy some of
    these original diodes, I'd be greatly appreciative.

    - Brian Molnar
     
  2. Chaos Master

    Chaos Master Guest

    Qu0t1n a 31337 h4ck3r 14b3113d Brian Molnar []:
    In what application is it used (e.g. power supply)? This may give a guess.

    []s
     
  3. Brian Molnar

    Brian Molnar Guest

    Yeah, you got it right on the nose. It's used in a combined power supply /
    amplifier for an organ. The diodes themselves are presumable being used for
    rectification, since they are attatched to one of the secondary windings of
    the main transformer. I treid to reference the transformer on a couple
    sites to find out what the voltage ratios of the windings are, but no luck.
    So I don't know how much voltage we're dealing with. Also, I looked at a
    couple of the caps, and the largest ones are rated for 60 V and the smaller
    ones are rated for 25 V, so I'd imagine the diodes should be able to handle
    up to 25 V.
     
  4. CFoley1064

    CFoley1064 Guest

    Subject: Re: Diode Question
    Hi, Brian. I believe you've got a 1N1449, which was made by GE back when the
    earth's crust was cooling. The 1N1449 is a silicon rectifier diode with a PIV
    of 400V and an I(f) of 1.5A max. You should do fine with a 1N5404 as a
    replacement
    (PIV = 400V, I(f) = 3A.)

    Good luck
    Chris
     
  5. Brian Molnar

    Brian Molnar Guest

    Looks like I'll be takin a trip down to The Shack today. Thanks a lot for
    the info.

    - Brian
     
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