Extraction of bipolar SPICE Gummel-Poon parameters related to forward Output (Ic vs. Vc) characteristics 
What two quantities are plotted against each other in a BJT's forward output characteristic curve?
When measuring the forward output characteristics, which quantity is stepped and held constant for each individual curve?
Which SPICE parameter models the upward slope of the collector current in the forward-active region?
What is the physical phenomenon responsible for the upward slope of the collector current, which is modeled by the Forward Early Voltage?
How is the Forward Early Voltage (`VAF`) typically determined graphically from the output characteristics?
On an output characteristic plot, what does the vertical *spacing* between the different collector current curves (for constant steps in base current) represent?
The 'knee' of the output characteristic curve, where the collector current is low and rises sharply with voltage, represents the BJT transitioning *from* which region?
The slope of the collector current curve *in the saturation region* (near zero collector-emitter voltage) is primarily determined by which parameters?
If the extracted Collector Resistance (`RC`) is very large, how will this visually affect the output characteristics plot?
The sharp, uncontrolled increase in collector current at very high collector-emitter voltages is known as what?