Partlist

Exported from datasette.sch at 04-Jul-18 23:12

Assembly variant: 

Part     Value          Notes

C1       47nF           ceramic
C2       1uF            ceramic
C3       1uF            ceramic
C4       100nF          ceramic
IC1      LM358N         OPAMP DIL8
R1       620            0.125W 1%
R2       100k           0.125W 1%
R3       100k           0.125W 1%
R4       20             0.125W 1%
R5       160            0.125W 1%
R6       4.7k           0.125W 1%
R7       2.2k           0.125W 1%
S1       Switch         3 pin switch
S2       Switch         3 pin switch
SG1      Buzzer         Piezo buzzer 5v   
SG2      Buzzer         Piezo buzzer 5v