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sharon1 24th March 2013 03:05 PM

question about a circuit
1 Attachment(s)
i know it may be stupid question but anyway:
this as small headphone amp with 2n2222?(picture attached)

gmphadte 26th March 2013 07:05 AM

What is the question.

Gajanan Phadte

sharon1 26th March 2013 10:59 AM

it can drive a headphone?

JonSnell Electronic 26th March 2013 11:07 AM

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.

jcx 27th March 2013 05:01 AM

the input bias R are heavier load on the source than many headphones

Fast Eddie D 27th March 2013 06:15 AM

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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