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Old 17th June 2014, 09:36 PM   #121
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LM3886 My_refservo14.png

Simulation of the above schematic. Close to zero audio signal at the servo input. It takes 90 seconds to reach zero offset. Could this be correct?
Regards Mark.
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Old 17th June 2014, 09:55 PM   #122
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Wow, Mark.. it seem to work too good to be true...
ClaveFremen "Bailando Salsa en el Sietch"
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Old 20th June 2014, 04:15 AM   #123
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I just found a circuit that you may find of interest on page 10 of this document,

It is basically the same concept only it is using a LME49610 as an output buffer for only +/-250ma.


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