Have you collect the equalizer as well? No? Why? Too complicated schemes, too many elements, and complex printed circuit boards? Well, not so bad.
Showing posts with label Equalizer. Show all posts
Showing posts with label Equalizer. Show all posts
Graphic equalizer based LA3607
Have you collect the equalizer as well? No? Why? Too complicated schemes, too many elements, and complex printed circuit boards? Well, not so bad.
RIAA equalizer
To listen to old vinyl records with a full sound, you need a diagram, called the RIAA equalizer. This can be found in older amps, but in the modern household equipment it no longer inserted. If you want to archive your vinyl records on your PC, you will also need RIAA equalizer. It would be nice if the corrector was built in power amp for small speakers or headphones. In the device described here is an amplifier. It consists of two parts: a proof-reader and an amplifier.
5 band graphic equalizer using single BA3812L IC
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| 5 band graphic equalizer |
This circuit uses an individual chip, IC BA3812L to realize the five band graphic equalizer for use in HI-FI audio systems. The BA3812L five-point graphic equalizer that has all the necessary functions integrated into one IC. This IC
consists of five tone control circuit and input and output buffer amplifier. The BA3812L features low distortion, low noise and wide dynamic range, and is an ideal choice for Hi-Fi stereo applications. It also has a wide operating voltage range (3.5V to 16V), which means that it can be adapted for use with most types of stereo equipment. The five center frequencies are independently set using external capacitors, and as an output stage buffer amplifier and tone control circuits independent clause, fine control over part of the frequency band is possible, with two BA3812Ls, it is possible to build a 10-point graphic equalizer. The number increases and the cut can be set by external components. The recommended power supply is 8V, but the circuit should work for 9V supply as well. Voltage limit is 16V. Circuit diagram is given in operation for around five frequency bands:
consists of five tone control circuit and input and output buffer amplifier. The BA3812L features low distortion, low noise and wide dynamic range, and is an ideal choice for Hi-Fi stereo applications. It also has a wide operating voltage range (3.5V to 16V), which means that it can be adapted for use with most types of stereo equipment. The five center frequencies are independently set using external capacitors, and as an output stage buffer amplifier and tone control circuits independent clause, fine control over part of the frequency band is possible, with two BA3812Ls, it is possible to build a 10-point graphic equalizer. The number increases and the cut can be set by external components. The recommended power supply is 8V, but the circuit should work for 9V supply as well. Voltage limit is 16V. Circuit diagram is given in operation for around five frequency bands:
- 100Hz
- 300Hz
- 1kHz
- 3kHz
5 Band Graphic Equalizer
Other units have a graphic equalizer. five bands. is fundamentally different from other circuits that use instead of IC, the transistor and the power go up / - 24V DC, for low distortion. With the switch S1, we can isolate the EQ. inside or outside the service, so that the signal is not a passport is not altered.
PART LIST | |||
R1-4-37 = | 330 Kohms | C4= | 220uF 63V |
R2-7= | 2.2Kohms | C5= | 1uF 100V |
R3= | 120Kohms | C6= | 220nF 100V |
R5-6= | 6.8Kohms | C7= | 47nF 100V |
R8....12= | 1.8Kohms | C8= | 15nF 100V |
R13....15= | 200Kohms | C9= | 5.6nF 100V |
R16 = | 180Kohms | C10= | 47nF 100V |
R17 = | 150Kohms | C11= | 15nF 100V |
R18 = | 1.5Kohms | C12= | 4.7nF 100V |
R19....22= | 1Kohms | C13= | 1.5nF 100V |
R23....27= | 220Kohms | C14= | 470pF 100V |
R28....32= | 15Kohms | C15= | 68pF 100V |
R33 = | 10Kohms | C16-19= | 100nF 100V |
R34 = | 15Mohms | C17-20= | 470uF 40V |
R35-38 = | 220 ohms 1W | C18= | 4.7uF 63V |
R36 = | 100 ohms | RV1....5 = | 50Kohms Lin. |
C1-3 = | 1uF 40V | Q1.....7 = | BC550C |
C2= | 68pF 100V | S1= | 2X2 SW |
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