[WriteLog] Solution to mic input and line out from soundcard

[Jack Colson]

Thanks to all who made numerous suggestions.
It turns out that a mic pre-amplifier solved the low drive problem (actually
the mic input on one card was defective and used the line in).  I built up
an op-amp for this purpose.

An adjustable 10-100:1 attenuator was added to the output of the isolation
transformer.   See suggested circuit in various help files.

73, Jack, W3TMZ