Labels Milestones
Back| R4, R6, R7, R30, R31 | 1 | 10R | Resistor | | | | | J3 | 1 | LED | Light emitting diode, 5 mm LED 5 mm Small Signal NPN Transistor, TO-92 | | | | | | C10 | 3 | A1M | Potentiometer | | | | R9 | 1 | TL074 | Quad operational amplifier, DIP-14"/>