My notes show the OEM HOT in MT-9121 to be 2SC5045, and original is always "best". Since this is a 1600V HOT, substitutes are limited, but 2SC5451, 2SC5588, 2SC5553, or 2SC4896 might work. More.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.