LM741 Operational Amplifier
LM311 Comparator
NE555 Timer
NE556 Dual timer (two 555s in one chip)
TBA820 2Watt audio amplifier
LM384 5Watt audio amplifier
(LM380 same pinout but 2.5Watts)
LM386 300mW low voltage audio amplifier
LM7805 5 Volt positive voltage regulator
LM7905 5 Volt negative voltage regulator
LM317 Adjustable positive voltage regulator
LM337 Adjustable negative voltage regulator
