Hello, I am getting into some basic transistor calculations. I am using a 2n2222 transistor and I have done the following calculations as shown in the attachment. However, as shown in the 2N2222 spec sheet attachment it says that the HFE should be determined by the corresponding ic calculations. If you look at my calculations, my ic is approximately 1.3 ma. According to the spec, shouldn't my HFE be somewhere around 60?? However, calculations with a HFE of 60 don't make sence with the actual physical readings? But HFE of 100 is much closer to the values I measure. So, in my case how is one supposed to determine the HFE for a given transistor such as the 2N2222? Thanks for all help!