![operational amplifier - Convert an audio signal to 0-5V using single supply op amp - Electrical Engineering Stack Exchange operational amplifier - Convert an audio signal to 0-5V using single supply op amp - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/wDdRq.png)
operational amplifier - Convert an audio signal to 0-5V using single supply op amp - Electrical Engineering Stack Exchange
![Amazon.com: Douk Audio U3 Headphone Amps, Mini Hi-Fi Amplifier for Home Desktop PC 6.35mm / 3.5mm Headsets, Class A, RCA Input, DC 5V : Electronics Amazon.com: Douk Audio U3 Headphone Amps, Mini Hi-Fi Amplifier for Home Desktop PC 6.35mm / 3.5mm Headsets, Class A, RCA Input, DC 5V : Electronics](https://m.media-amazon.com/images/I/71fOOP9LeUL.jpg)
Amazon.com: Douk Audio U3 Headphone Amps, Mini Hi-Fi Amplifier for Home Desktop PC 6.35mm / 3.5mm Headsets, Class A, RCA Input, DC 5V : Electronics
![Amazon.com: Blue~Tooth Board, DROK 12V Audio Receiver Blue~Tooth Module DC 5V-12V Portable Wire~Less Electronics Stereo Music Receive Circuit Chip with Micro USB Port for Headphone Speaker Home Sound System DIY : Electronics Amazon.com: Blue~Tooth Board, DROK 12V Audio Receiver Blue~Tooth Module DC 5V-12V Portable Wire~Less Electronics Stereo Music Receive Circuit Chip with Micro USB Port for Headphone Speaker Home Sound System DIY : Electronics](https://m.media-amazon.com/images/I/81YbxwcflCL.jpg)