BUY 2SC1973 https://www.utsource.net/itm/p/11218931.html

Description: 2SC1973 is a NPN epitaxial planar silicon transistor manufactured by Panasonic. Features: Low collector-emitter saturation voltage High current gain High frequency operation High reliability High voltage Applications: Audio frequency amplifier Low frequency amplifier High frequency amplifier Switching applications (For reference only)