Echo Repeter and preamp mic schematic
Echo Repeter and preamp mic schematic
Part
R1,6,25,36,48,54 2K2
R2,7,16,27 470K
R3,8,26,31 12K
R4,9,39 220R
R5,10 22K
R11 1M5
R12,45 10K
R13,52,53,58,59 15K
R14 330R
R15 120K
R17,18 33K
R19,30,34,50,56 6K8
R20,21 220K
R22 820K
R23,24,35 100K
R28,29,32,33 39K
R37 2M2
R38,47 5K6
R40,42 100R
R41,51,57 1K
R43 10R
R44 1K2
R46 4K7
R49,55 1M
VR1,2,4,5,6 POT B50K
VR3 TRIMPOT 20K
C1,3,4,6,8,9,10,14,16,17,25,33,35 0,47uF 50V
C2,5 220pF
C7,28,37,38 100uF/10V
C11,29 1nF
C12,20,22 6,8nF
C13,19,23 1,5nF
C15 100pF
C18,21 3,3nF
C24 1uF/50V
C26,27,34,36 4,7uF50V
C30 22nF
C31 33nF
C32 100nF
D1 LED
TR1,2,3,4,5,6,7,8,9 25C945
IC1 MN3207
IC2 MN3102
