Greetings,
I am thinking about making a built in adapter for my aviation headset so that I can use it with my PC without the external battery powered amplifier that I have now. The trouble is that the PC power supply is 3.3v, 5v, and 12v and the diagram that I used to make my external adapter is based on a 9v battery. My experience and knowledge is very limited when it comes to designing circuits so any help with making this circuit would be greatly appreciated. In addition, I would like to make a standard size mic (unamplified) and out port coming off the same circuit.
The diagram I have:
**broken link removed**