Noise figures/transistors

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From: ASIRENE@v9001.ntu.ac.sg
Date: Fri Mar 25 1994 - 01:34:20 EST


Hi,

        Here's a design question. I am looking at the front-end RF amp
which uses a 2N3904 and asking myself if I were to replace this with a
transistor with a lower noise figure, say a 2N5179 or BF689, will I see
any improvement? Is this mod worth pursuing? How much improvement can I
expect to see here?

        Tks.

Daniel


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