war_spigot, how do you know that the value of the resistor should be 1k?
So it draws a little over 0,05A, not 1A
If we are already talking about transistors - how can I know what is the best (safe &efficient) base current for a transistor? In the datasheet I have only collector current in the "Absolute maxiumum ratings" table. There is nothing about the typical base current.