Identifying this "IC”, Trying to reverse engineer a board
Can't be absolutely certain but the IC looks to be a TDA7052  (http://www.nxp.com/documents/data_sheet/TDA7052.pdf)



The bjt looks like a pre-amp stage for an electret microphone. Not totally convinced you have the correct circuit but there are lots of similar circuits out there on the net you could use.

for example: