2SC1983 NPN SILICON DARLINGTON TRANSISTOR SWITCH.
2SC1984L - (2SC1983L / 2SC1984L) NPN Silicon General Purpose Transistor
LMC1983 - Digitally-Controlled Stereo Tone and Volume Circuit with Three Selectable Stereo Inputs
2SC1983L - (2SC1983L / 2SC1984L) NPN Silicon General Purpose Transistor