Talk:Circuit Idea/NFB Transistor Current Source

Here is the building "scenario" that my students (group 68b) and I were using during Lab 3 to transmute an emitter follower into a negative feedback BJT current source. Circuit-fantasist (talk) 13:26, 28 April 2008 (UTC)

Lab 3: "Inventing" a negative feedback BJT current source
Thursday, April 10, 2008, 16.45 h

Transistor as a current-stable resistor






Comparison with a voltage-stable resistor






Building the simplest negative feedback follower




Building an emitter follower on the whiteboard




Mounting the emitter follower on the PCB






Investigating the emitter follower




Making transistor behave again as a current-stable resistor


