U1
R8
Resistance
3.3kΩ
R7
Resistance
2.2kΩ
R3
Resistance
1kΩ
C1
Capacitance
10nF
R9
Resistance
100kΩ
R6
Resistance
500 Ω
R4
Resistance
5.6kΩ
R2
Resistance
5.6kΩ
R1
Resistance
39kΩ
C3
Capacitance
220nF
D5
C2
Capacitance
680uF
D2
D1
D7
J2
D3
D4
J1