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Old 24th March 2013, 02:05 PM   #1
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Default question about a circuit

i know it may be stupid question but anyway:
this as small headphone amp with 2n2222?(picture attached)
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Old 26th March 2013, 06:05 AM   #2
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What is the question.

Gajanan Phadte
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Old 26th March 2013, 09:59 AM   #3
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opps
it can drive a headphone?
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Old 26th March 2013, 10:07 AM   #4
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Yes but not very well as it is not a complimentary circuit and cannot provide as much current towards the +ve rail as the transistor relaxes, as towards the -ve rail when the transistor is working. I would think it may be reasonable though.
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Old 27th March 2013, 04:01 AM   #5
jcx is offline jcx  United States
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the input bias R are heavier load on the source than many headphones
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Old 27th March 2013, 05:15 AM   #6
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There's so much wrong with this circuit as a headphone amp.

With so many circuits available, why build this? It's low impedance input and not very linear. I don't think it could even drive an iteration of itsself. You'd be way better off paralleling a couple of 5532s.

This is the kind of circuit you'd build in a beginning electronics class. It really doesn't have any practical use at all.
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