Are these FETS or Bipolar?

Idss grading or V_subp (FET) or

gain (beta), perhaps f_subt (transition frequency) (BIPOLAR)?

RF Jim

----- Original Message -----
From: "Brendan Moran" <bmoran@MILLENNIUM.CA>
To: <PICLIST@MITVMA.MIT.EDU>
Sent: Thursday, August 22, 2002 1:58 PM
Subject: [EE]: RF transistor colouring


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> Does anyone know why RF transistors in the 86 plastic package are
> coloured either black or white?
>
> I have a circuit with two transistors marked 414 in the 86 Plastic
> Package, which, I believe, implies that they are 41486s.  What is
> strange is that I have two of these circuits, and both of them have
> one black 41486, and one white 41486.  Does anyone know the reasoning
> behind this?
>
> - --Brendan
>
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