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Transistor Identification?

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  • Transistor Identification?

    Does anyone know what this transistor is? It's on a little SG type oscillator so I'm guessing it is a NPN but do not know what company that symbol goes to. Nobody as Mouser or Digikey can identify it.

    Sincerely,
    Aaron Murakami

    Books & Videos https://emediapress.com
    Conference http://energyscienceconference.com
    RPX & MWO http://vril.io

  • #2
    best guess is Thomson TO-92

    logo
    1 x BUW52 NPN Power Transistor 250V 150W 250V 20A Thomson TOP-3L 1pcs | eBay

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    • #3
      Its a bit of a minefield trying to identify transistors from the billions Aaron. I wonder might I suggest you invest in a simple tester something like this one
      https://www.banggood.com/Transistor-...l?rmmds=search
      It quickly goes through a few tests identifies the component and it orientation and then all the operating parameters so you've got a fighting chance to closely match it to the transistor tables and specs. or simply try a few in the instrument until you find a pretty good match. Its a bit frustrating that you'll have to lift a couple of legs or cut the PC to apply the test still its the best suggestion I can offer. works for me even doing pretty good matching of push pull circuits
      kind regards Duncan
      Whatever you can do,or dream you can,begin it.Boldness has genius,power and magic in it.Begin it now.

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      • #4
        Hi Aaron,

        Possibly 2N5249, which is NPN, 50V 0.1A

        V
        Attached Files
        Last edited by blackchisel97; 10-10-2017, 11:18 AM.
        'Get it all on record now - get the films - get the witnesses -because somewhere down the road of history some bastard will get up and say that this never happened'

        General D.Eisenhower


        http://www.nvtronics.org

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        • #5
          Hi blackchisel - might be some trouble from my end but it seems your link isn't playing the game right now - regards D
          Whatever you can do,or dream you can,begin it.Boldness has genius,power and magic in it.Begin it now.

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          • #6
            Originally posted by Duncan View Post
            Hi blackchisel - might be some trouble from my end but it seems your link isn't playing the game right now - regards D
            Thanks Duncan, fixed now.

            V
            'Get it all on record now - get the films - get the witnesses -because somewhere down the road of history some bastard will get up and say that this never happened'

            General D.Eisenhower


            http://www.nvtronics.org

            Comment


            • #7
              2n2222

              Thanks for all your input - Duncan, I like that Transistor tester, will have to get one of those.

              I heard from someone that worked on this particular circuit that it is equivalent to a 2N2222 so that makes it easy. Mystery solved!
              Sincerely,
              Aaron Murakami

              Books & Videos https://emediapress.com
              Conference http://energyscienceconference.com
              RPX & MWO http://vril.io

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