[TenTec] Fw: question Digital matching-- rig to sound card

[Stuart Rohre]

Barry, thanks for remembering the other small Radio Shack 1:1 transformer 
for 600/ 900 ohm isolation.

I was thinking of the speaker output side of sound cards being around 8 
ohms, and the other side can be a variety of values, but many rig mike 
inputs are closer to 600 ohms today.

For ham audio applications exact impedance matching is not imperative.  Most 
of the circuits can be thought of as voltage applications.  And a  level 
control is available.

-Stuart
K5KVH