From old datasheet system HORIZONTAL DEFLECTION output FOR high RESOLUTION DISPLAY, COLOR TV high SPEED SWITCHING APPLICATIONS NPN TRIPLE DIFFUSED MESA TYPE (HORIZONTAL DEFLECTION output FOR high RESOLUTION DISPLAY, COLOR TV. high SPEED SWITCHING APPLICATIONS)
From old datasheet system HORIZONTAL DEFLECTION output FOR high RESOLUTION DISPLAY, COLOR TV high SPEED SWITCHING APPLICATIONS NPN TRIPLE DIFFUSED MESA TYPE (HORIZONTAL DEFLECTION output FOR high RESOLUTION DISPLAY, COLOR TV. high SPEED SWITCHING APPLICATIONS)