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Re: Topband: pHEMT and MOSFET preamps and 1/f noise on 160 meters

To: topband <topband@contesting.com>
Subject: Re: Topband: pHEMT and MOSFET preamps and 1/f noise on 160 meters
From: Mike Waters <mikewate@gmail.com>
Date: Tue, 22 Sep 2015 18:37:23 -0500
List-post: <topband@contesting.com">mailto:topband@contesting.com>
The NE46134 / 2SC4536 is part of that family. What do you think of it, Rick?
www.mouser.com/ds/2/286/ne46134-607377.pdf

73, Mike
www.w0btu.com

On Tue, Sep 22, 2015 at 4:45 PM, Richard (Rick) Karlquist <
richard@karlquist.com> wrote:

>   The 2N5109 is part of the 2N3866 family.  What was special about those
> devices was low base spreading resistance, maybe 5 ohms or so.  This
> parameter, along with HF current gain, determines NF.  The big geometry
> should give better dynamic range and linearity.
>
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