Hello, please look at the two pictures provided and try to answer my question...
One of the circuits is a three-rail circuit. I've used an op-amp circuit as an example. The other is a two-rail circuit. I've used a transistor circuit as an example.
Question:
How do I connect each circuit together? (I'm using batteries.) I'm not sure whether the 3-rail's '0V' should be connected to the 2-rail's '0V', or whether it should be '-V' to '0V'. See, if I connect 0V to 0V then the audio grounds are connected, which is good. However, the -V part of the battery would not be connected to the 2-rail circuit that way, so that circuit wouldn't get any power... do I connect the 3-rail's -V to the 2-rail's 0V, and connect the audio ground on the 3-rail side to -V?
One of the circuits is a three-rail circuit. I've used an op-amp circuit as an example. The other is a two-rail circuit. I've used a transistor circuit as an example.
Question:
How do I connect each circuit together? (I'm using batteries.) I'm not sure whether the 3-rail's '0V' should be connected to the 2-rail's '0V', or whether it should be '-V' to '0V'. See, if I connect 0V to 0V then the audio grounds are connected, which is good. However, the -V part of the battery would not be connected to the 2-rail circuit that way, so that circuit wouldn't get any power... do I connect the 3-rail's -V to the 2-rail's 0V, and connect the audio ground on the 3-rail side to -V?