
This
complete high quality, low noise 5-BAND GRAPHIC
EQUALIZER circuit is based around Monolithic Linear
integrated circuit LA3600 manufactured by SANYO.
This circuit is very easy to build and has good
Quality. You can use it with Portable component
stereos, tape-recorders, radio-cassette recorders,
car stereos etc...
It is On-chip one operational amplifier. 5-band
graphic equalizer for one channel can be formed
easily by externally connecting capacitors and
variable resistors which fix fo (resonance
frequency). Series connection of two LA3600’s makes
multiband (6 to 10 bands) available. It is Highly
stable to capacitive load. Maximum supply voltage
VCC max 20V must not be exceeded. The operating
voltage is in the range of 5 to 15V. Application of
power with the pin-to-pin spaces shorted causes
breakdown or deterioration of the IC to occur. When
mounting the IC on the board or applying power, make
sure that the pin-to-pin spaces are not shorted with
solder, etc.
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this circuit in PDF