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.
R6, R13, R19____________________47K
R7, R12, R23, R25________________120K
R8, R15, R16____________________100K
R24, R26, R28___________________220k
C3, C6, C7, C13__________________3,3uF/16V
C15, C16, C22, C23_______________3,3uF/16V
C8, C9, C10_____________________3K3
C11, C12, C20___________________220pF
VR2___________________________10K Pot B
D2____________________________9V Zener Diode
The MN3005 is a world’s first 4096-stage long delay BBD, 8 times longer than S12-stage BBD manufactured by using a P-channel low noise silicon gate process.
Long signal delay time 205ms can be obtained at clock frequency 10KHz. S/N is 75dB. S/N has been improved by more than 20dB in comparting with 8~connected S12-stage BBD’s. The MN3005 is suitably used for reverberation and echo effects in electronic musical instruments such as elec- tronic organ, guitar amplifier and music synthesizer which need long delay time.
The MN3101 is a CMOS LSI generating two phase clock signal of low output impedance to drive MN3000 series BBD. Built-in VGG power supply circuit for the MN3000 series BBD* provides most suitable VGG voltage for the BBD when the MN3101 is used with the same power source as BBD. Oscillation is abled by external resistors and capacitors, and also oscillation drive is possible by the separate excitation oscillation. Clock signal frequency is 1/2 of oscillation frequency.
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Echo Chamber Circuit with 4 IC AnnotationCategory: ECHOImage Uploaded: 1Image Format: jpg - gifAuthor: TBDate: December 06th, 2011Time: 20:20:04 PM
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