Comment germanium junctions have 0.2V voltage drop (Score 1) 66
Indeed, I seem to recall that a germanium diode had a ~0.2V forward voltage drop which made them better in rectifiers and such than the silicon diodes with ~0.6V.
At high currents, that voltage drop means less power wasted by the device. With transistors, that means a much lower base open voltage, though I don't remember exactly why or if that was useful...