Tasel

This circuit can be applied on any source of audio signal like microphone, mp3 player, radio, etc. The aims is smoothing the voices with echo. Using four ICs as main active components, produce a repetitious sound.

Circuit Parts
R1____________________________22K
R2, R3_________________________4K7
R4____________________________1K
R5____________________________82K
R6, R13, R19____________________47K
R7, R12, R23, R25________________120K
R8, R15, R16____________________100K
R9, R10________________________56K
R11, R12_______________________33K
R14___________________________15K
R17, R18_______________________5K6
R20, R21_______________________39K
R24, R26, R28___________________220k
R27, R29_______________________10K

C1, C18________________________2K2
C2____________________________1uF/16V
C3, C6, C7, C13__________________3,3uF/16V
C15, C16, C22, C23_______________3,3uF/16V
C4____________________________470pF
C5____________________________1K
C8, C9, C10_____________________3K3
C11, C12, C20___________________220pF
C14___________________________820pF
C17___________________________1K8
C19___________________________4K7
C21___________________________47K
C24___________________________100uF/16V

VR1___________________________200K
VR2___________________________10K Pot B
VR3___________________________20K
VR4___________________________100K

D1____________________________1N4148
D2____________________________9V Zener Diode

TR1___________________________C536

IC1, IC4_______________________AN6651
IC2___________________________MN3005
IC3,__________________________MN3101

[source:Schematic Diagram]