name: LH4002 function: Wideband Video Buffer package: DIP10,10 manufacturer: National Semiconductor +--()--+ Vcc2+ | 1 10| nc Vcc1+ | 2 9| nc input | 3 8| output Vcc1- | 4 7| nc Vcc2- | 5 6| nc +------+ This pinout came from the Chipdir: http://www.chipdir.org/