Audio ProjectsBy DerekD36 in CircuitsAudio6099FavoriteInteresting audio-oriented instructables, such as players and speakers.Interesting audio-oriented instructables, such as players and speakers.40W Bluetooth Portable Speaker (Improved Version!)by Barry_L in AudioCassette Tape MP3 Playerby lonesoulsurfer in GadgetsCassette MP3 Playerby BrittLiv in AudioMixDrive: USB Cassette Tapes Made Easyby RikkaKoi in USBBluetooth Tube Receiver Project 5 Japanese Prewar Era's 3-Tubeby yaaaam in SpeakersBluetooth Tube Radio Project 3 - Japanese Mid-Century Plastic Radioby yaaaam in Audio