Table components: R1, R2, R3 resistor 1K8 R4, R5, R6 resistor 3K3 R7 ​​resistor 10 ohm C1 Capacitor 10uF / 16 volt or more C2 capacitor 47 nF C3 capacitor 220 uF / 16 volt C4 100 nF capacitor U1 LM 386N-1 https : //www.tme.eu/pl/details/lm386n-1_nopb/uklady-scalone-rtv-audio/texas-instruments/ SD card slot ...