I'm new to amp building, made a couple of LM386 set ups running on batteries, a muff pi, and a simple crappy tone killing fuzz effect. I recently got 10 TDA2003 chips for fun ($8)
I built the simple amplifier circuit from the datasheet and had it sounded like garbage. Would hum really bad with nothing hooked up, wasn't very loud. If i cranked my guitar to max volume, it would cut out all together.
This was powered off the 12v lines of a computer power supply. I also(for giggles) hooked a 9 volt to it. <-- same results with the 9volt just not as loud.
My intended use is to build a battery powered amp. I've got me a nice little 12v 7amp security battery with a regulator/charger that will push a steady 12v at 3 amps max.
my lm386 builds are louder than this thing is currently, they also have more clean head room than this does (NONE)... So I'm doing something wrong.
Where should i start?
I built the simple amplifier circuit from the datasheet and had it sounded like garbage. Would hum really bad with nothing hooked up, wasn't very loud. If i cranked my guitar to max volume, it would cut out all together.
This was powered off the 12v lines of a computer power supply. I also(for giggles) hooked a 9 volt to it. <-- same results with the 9volt just not as loud.
My intended use is to build a battery powered amp. I've got me a nice little 12v 7amp security battery with a regulator/charger that will push a steady 12v at 3 amps max.
my lm386 builds are louder than this thing is currently, they also have more clean head room than this does (NONE)... So I'm doing something wrong.
Where should i start?