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Old 11th August 2008, 04:10 PM   #1
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Default Analog amp with optocoupler

Is it possible to use linear optocoupler like HCNR200 to make analog audio amp? From input transistor directly to B-E of final transistor?
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Old 11th August 2008, 04:18 PM   #2
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Remember that practical output current is in the range of 5 or 10 microamperes.
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Old 12th August 2008, 02:36 AM   #3
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You're right, the output current is small in the linear area.
How about using this diamond-buffer style booster?
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