Scheme :
this is old and original from sanyo datasheet.. so if you want to try it, buy it and build it :-)
protoboard :
not yet uploaded, next time i will upload my protoboard . i don't promise :)
result:
good,.. this is caled "compo amplifier", cause has compact figure box, small enough and able use batterai 12V
the IC produce heat, please use a good heatsink.
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