At 10:15 AM 7/19/01 +0200, you wrote:
>Dear Vasile,
>
>Thank you very much for your clear explanation. I have build it and it
seems not to work (some sound is heard but not pure tones) with the 741.
Looking at the datasheet, I found for that chip:
>VccMin: 10 V
>VccMax: 36 V
>VinMin: 2 from V- rail
>VinMax: -2 from V+ rail
>VoutMin: 1 from V- rail
>VoutMax: -1 from V+ rail
>
>I have changed to the LM324 and everything is working wonderful. The only
problem is that it is a Quad chip (14 pins). Does anybody know an
equivalent single version (8 pins)?

You can use the dual LM358, but the cost is actually about the same per
chip as the LM324, so unless you are
tight for space, you could do worse than to standardize on the LM324 in DIP
or SO-14.

Best regards,
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Spehro Pefhany --"it's the network..."            "The Journey is the reward"
speff@interlog.com             Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog  Info for designers:  http://www.speff.com
Contributions invited->The AVR-gcc FAQ is at: http://www.bluecollarlinux.com
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