Sinus Audio Tube Amplifier March 28, 2022 Matej Isak Sinus Audio tube amplifier (2x15W) with 6560/KT88, 6D22S, EF80, 85A2, EL34, 6SN7 Trafonica output transformer, Toroidy main transformer, Miflex capacitors, Dale ladder volume control, etc.
