At 08:55 AM 7/20/01 +0300, you wrote:
>>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.
>
>Ahh, tones. So it's for sound. The 'classic' 5V sound amp is RC(A)4558
>which is an improved 358 version.

The 4558 is an improved dual 741 rather than a single-supply type.
In particular, the output won't swing nearly as close to the negative
supply rail as the LM358 will.

Best regards,
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Spehro Pefhany --"it's the network..."            "The Journey is the reward"
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