Maybe I've got it...ish.
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The current mic amp stage into a 50 Ohm load ranges in gain between 20 Hz (Av ~0.25) to 20 kHz (Av ~1.05).?
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I think we'll still have to adjust RE as the gain into loads (the buffer) between 1K and 10k Ohm still appears to result in gains less than 1.
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Using Skeleton's buffer with about a 309 Ohm impedance means we need an RE of about 79 Ohm for a gain of 3, and 118 Ohm for a gain of 2.
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Maybe.
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(I have to say - I'm liking the idea of winding a transformer more and more!)
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73, Andy
