Part Number	Manufacturer / Brand	Brife Description
TDA3079	RCA	TDA3079 RCA IC DIP-14
TDA51446A	INTERSIL	TDA51446A INTERSIL IC TO220-7
TDA731SD	HARRIS	TDA731SD HARRIS IC SOP
TDAS57L-1	HARRIS	TDAS57L-1 HARRIS IC PLCC-28