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Author Topic: Bass activated LED's  (Read 7771 times)

trials_modder

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Re: Bass activated LED's
« Reply #20 on: February 14, 2006, 05:26:04 PM »

K just to get this straight:
5V positive hooks up at pin 8
5v negative hooks up at pin 4

Input A positive hooks up at pin 3
Input A negative hooks up at pin ?

Input B positive hooks up at pin 5
Input B negative hooks up at pin ?

Output A positive hooks up at pins 1+2 combined.
Output A negative hooks up at pins?

Output B positive hooks up at pins 6+7 combined.
Output B negative hooks up at pins?
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viridius

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Re: Bass activated LED's
« Reply #21 on: February 14, 2006, 07:55:22 PM »

The input grounds are all connected together and connected to GND.  The output grounds are all connected together and connected to GND.  Remember that the inputs have to go through the RC network and the ouput of the RC network goes to the input of the opamp.
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trials_modder

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Re: Bass activated LED's
« Reply #22 on: February 15, 2006, 02:12:28 PM »

Are these chips you talk about the "UA741" and the "MC1458"?
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viridius

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Re: Bass activated LED's
« Reply #23 on: February 15, 2006, 02:53:54 PM »

Yeah, well the uA and MC just denote different temperature ranges and whatnot.  As long as you get a 741 or a 1458 of some sort, you should be fine.
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