TL074 10 Band Graphic Equalizer
TL074 10 Band Graphic Equalizer
With graphic equalizer we make selective cutting off or boost, of selected departments of acoustic spectrum. With this way we can adapt the musical reproduction, in the characteristics of space where we hear. This can create however also problems if go to far specifically in the gain of some area, with result the distortion. The circuit should be made in two pieces, one for each channel, the potesometer regulation it should they are Fader. With switch S1 we can by pass the circuit, leaving the musical program, to pass without alteration (FLAT). With the potesometer RV1 we regulate the gain of each channel.
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Part list
| R1-29=100 ohms |
C7=220nF 100V |
C20=1nF 100V |
| R2-5-31=1Mohms |
C8=100nF 100V |
C21=560pF |
| R3=47Kohms |
C9=47nF 100V |
C22=270pF |
| R4=15Kohms |
C10=27nF 100V |
C23=150pF |
| R6-28=10Kohms |
C11=12nF 100V |
C25=150pF |
| R7....17=1Kohms |
C12=6.8nF 100V |
C26=10uF/25V |
| R18....27=220Kohms |
C13=3.3nF 100V |
RV1=250Kohms Lin. |
| C1=47uF/25V |
C14=68nF 100V |
RV2.....12=4.7Kohms Lin. |
| C2=47pF |
C15=33nF 100V |
IC1...3=TL074 |
| C3=150pF |
C16=18nF 100V |
S1=2X2 SW |
| C4=1.5uF 100V |
C17=8.2nF 100V |
J1...3=RCA Jack |
| C5=820nF 100V |
C18=3.9nF 100V |
All Resitors is 1/4W 1% |
Source : users.otenet.gr/~athsam
Keywords :
TL074,
10Band,
Equalizer,
Graphic,
Schematic,
Ciruit
Writer : delon |
8 Feb 2011 Tue
| 173.956 Views