4440 ic और TDA 7297 ic ऑडियो एमप्लीफायर बोर्ड में क्या फर्क है?

[@devendravarma4477]

Good information

[@electronicsknowledgehindi3994]

Thanku Sir

[@pandeyelectronicallwork3214]

bhut achha bole

[@youtubewale6385]

Tda 7297 originally ic mil raha hai sound bhi iska better hai