name: LM6125 function: High Speed Buffer package: DIP14,14 manufacturer: National Semiconductor +--()--+ Vout | 1 14| V+ V- | 2 13| Vin Heatsink | 3 12| heatsink Heatsink | 4 11| heatsink Heatsink | 5 10| heatsink nc | 6 9| s/d flag | 7 8| gnd +------+ This pinout came from the Chipdir: http://www.chipdir.org/