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graphic equalizer with gyrator issue TL072
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dave_j_fan:
this is an equalizer with gyrator elements.
i have tried to realize it with Tl072
opamp.
i made just for 60hz
how to connect it on 15 0 -15v
so far i have not been able to get clear audio via this.also pot for 60hz filter dont show any change when i vary.
ledtester:
Here's an article describing the circuit:
http://www.geofex.com/Article_Folders/EQs/paramet.htm
Note that in the other schematics Vb is defined by a voltage divider between +9 and GND:
So for adaptation for 15-0-15 I would use 15 for "+9", -15 for "GND" and 0 for "Vb".
dave_j_fan:
ok .thank u for very accurate reply.
i will try the same
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