Let's Make Robots!

Boosting speakers

Once again, I beseech the robot gods for some info ...

Speakers: How can I boost the sound/tune command from a picaxe to a speaker?

I've got a small 8ohm speaker that I've used in the past, and it works great (as long as the motors aren't droping the voltage) but  I want to boost my output. I've also got a much bigger 1 watt speaker I want to use. How would I boost it?

The picaxe manual mentions a TBA820M audio amplifier. Does anyone have any experience with this? Will that be too much wattage for a 1 watt speaker? Hopefully someone can translate the gobbledy-gook on that page into LMR-speak ...

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 Spend 1 hour on your local internet and you should be able to find an old set of PC-speakers for $4 max, or a new pair for around $. This has an amp in it. Rip it out and connect a 9v battery. Build-time: 5 minutes...

/ vzz-clck-"Maneuver"

Word indeed, my friend... Word.
I'm always open to new flavors of gobbledy-gook.
That's one of the other flavors of gobbledy gook I could have given you.
Hey, I've got a follow up question on this, but I decided to make it a new forum post. Reply, if you dare ...
the circuit you have to build is on the back of the package. Very simple. One input is from the picaxe (or whatever) the other input is the shared ground. Really, it's just a few componants.
Use the LM386. You can get it from Radio Shack for about 2 bucks and it only needs a cap or two and a pot. It is a great, simple and cheap audio amp. I have used this chip a lot, including some USB powered speakers for my wife's laptop.
Do I just connect the outpin to it and go?

I could replace that gobbledy-gook with gobbledy-gook in several other flavours but in LMR speak, go find a cheap little set of speakers like you plug a walkman into. Make certain they have an amplifier (needs batteries or a plugpack) and check that the voltage required isn't too high, preferably 6V (4xAA) or USB powered.

Rip the amplifier out of it. You'll probably get stereo as a bonus!