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Re: [Amps] More on "baby ur radio"

Subject: Re: [Amps] More on "baby ur radio"
From: "Roger (K8RI)" <>
Date: Wed, 23 Dec 2015 21:20:35 -0500
List-post: <">>
Migration is a fact of life and common to all bipolar transistor. See my earlier post. It is intrinsic to the purity material used. IE: Newer is better. It is not a manufacturing defect and is entirely different than the purple plague.

It is the migration of minority carriers across a junction. IE. The majority carriers migrate to the N-type material where they are minority carriers. This degrades several of the transistors performance factors, such as gain and frequency performance.


Roger  (K8RI)

On 12/20/2015 Sunday 12:52 AM, Bill Turner wrote:
------------ ORIGINAL MESSAGE ------------(may be snipped)

On Sat, 19 Dec 2015 22:40:28 -0600, you wrote:

Migration is a real phenomenon but it's a quality defect, and not part of
the normal operation. Google "purple plague."

So, absent migration, do transistors "wear out"?

73, Bill W6WRT
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