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[TRLog] Parallel port problems.

Subject: [TRLog] Parallel port problems.
From: w7ti@jps.net (Bill Turner)
Date: Thu, 07 Dec 2000 12:18:32 -0800
On Thu, 7 Dec 2000 10:22:07 -0700, Dave Hachadorian wrote:

>Within the last six months, I have purchased two boxes of 2n2222
>transistors from Radio Shack, and found that 80% of them did
>not work properly.
_____________________________________________________________________

It could be the emitter and base were reversed on the package diagram.  Oddly
enough, most bipolar transistors will operate that way, though with reduced gain
and (probably) lower dissipation ratings.  I used to work for a major stereo
manufacturer's service department and we found hundreds of units which had been
shipped with the FM RF amplifier reversed that way.  They worked well enough to
get out of the factory, but in weak signal areas, no go.

73, Bill W7TI

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