(It could drive the LM386 quite nicely.) The circuit is a simple discrete transistor feedback. The main objectives of the analog circuit were to. A pretty powerful amp with a low voltage battery. It isnt intended to drive a speaker or headphones directly. (2.2 KX) 1 50 3 Pre-amp LM358P 1 25 4 Power amp LM386 N 1 25 5 Headphone 1 500 6 Potentiometer 20. (if speakers you choose are not powerful enough). I suggest keep gain to as low as zero when you done with schematic and then gradually tune up the potentiometer to avoid the speakers to damage. Lm386 Audio Amplifier Circuit With Pcb Lm386 Stereo Amplifier In Bridge 2 Watts Electronics Projects. Choose the speakers according to your requirement. The TPA6138A2 64 is designed to drive headphones, providing 40 mW into 32. Amplifier Board Headphone Amp Parts Preamplifier Musical Fidelity Kit AC12V 0.8A. The voltage gain can be adjusted by adding a potentiometer across pin 1 and 8. As much fun as it is to design and build your own transistor amplifiers. Buy DEVMO LM386 Super Mini Audio Amplifier DIY Kit Board 35x37mm 3-12V. Please refer the lm386 data sheet before changing components. A short Google on lm386 must let you to various data sheets for the same. For more specifications on lm386 you can refer the data sheet. During my college days I wanted to make a small audio power amp that you can put in your pocket and tune up sound in headphone hence I used this IC. LM386 Audio Amplifier Circuit with PCB It was my first mini audio. Power amplifiers are something which converts low voltage input to high voltage output hence this audio amplifier amplifies the low voltage audio into high output. The headphone amp is composed of an OP-AMP and an additional transistor amplifier.
0 kommentar(er)
