.. where it's easier, cheaper and more convenient to use the circuits shown than to have to source relays, or to try to wire up CMOS switches for muting. While it is possible to use the ideas shown here for source switching, there will be ...
.. but a little known technique that really doesn't look like it could ever work is to use bipolar transistors. The design shown here has extremely low distortion when turned off, and also has very little signal ...