Audio Ampilfier

[nbo10]

Hi all,
I'm trying to build a audio power ampilfier but can't get the circuit to work. The attached jpg shows the circuit that I'm building. Can anyone help??? Thanks

[nbo10]

Well it turns out I had a defective bread board.

[cyeokpeng]

Well done, In my whole life, I never know that breadboards can be defective too. May be due to poor quality control in the manufacture of breadboards.