Understanding transistors....

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i don't know transistors have 1 question , question is… irf5305 behaving differently irf9z34n, of course, ordered irf9z34n , told me out of stock. asked me if ok send me irf5305…. of course not knowing said... told them ok. got them here , different. i'm using these mosfets led switching. 5305 u have apply ground base turn on. remains on until u apply positive source base. ???

how circuit wired up?


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