Problem:
A designer, having examined the situation described in Problem and estimating the available gain to be approximately -36.3 V/V, wants to explore the possibility of improvement by reducing the loading of the source by the amplifier input. As an experiment, the designer varies the resistance levels by a factor of Approximately 3: R1 to 82 kΩ, R2 to 47 kΩ, RE to 7.2 kΩ, and RC to 12 kΩ (standard values of 5%-tolerance resistors). With VCC=15 V, Rsig=2 kΩ, RL=2 kΩ, and β=100, what does the gain become Comment.