Hi,
Can I amplify a card toy music chip circuit?
If so how can I do that?

Can somebody suggest a simple way?
Chip is something like in the attachment.

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Try some PC speakers, or any speakers with a headphone cable. Cut the male end off the headphone cable and touch the center wire to one of the solder points on the speaker.

 

or addon a plug to plug the speakers in.

If you really wanted to build a circuit you could use a simple op-amp.....I think.

 

If you really wanted to build a circuit you could use a simple op-amp.....I think.

No.
An opamp does not have enough output current to drive a speaker. You need a power amp, not an opamp.

That is why using a powered computer speaker was mentioned. It already has a power amp in it.

 

Amplfied PC speakers work. I just tried it.