RS Pro 263239 Heatsink Transistor Mount Kit for Use with to-3

here's my high voltage power supply thirty kilovolts apply I'm down here you can see two transistors both attached to some heat-shrink material these transistors are each two and 30:55 transistors and as the power supply runs transistors get hot so need to dissipate that heat somewhere we need to conduct it to something and that's what the heatsink is for will conduct the heat from the transistor to the heatsink but we don't want to conduct electricity that way let me just open up a power supply here already unscrewed it so you could see it's a friend it's a flyback type power supply with the voltage multiplier right here now there's your transistor and if I look at the other side you can see here's where it all connects to this funky thing with these wires so what is all that no here you go that's what all this is this is the transistor itself and when I purchased it I also picked up t