looking at prolem 8.6:
at 1%
Af = A/(1+AB) -> AB = 99

at 5%
Af = A/(1+AB) -> AB = 95


once the topo for a feedback amp is identified...he trailed off

now looking at fig 8.1 on p793

this class was mostly jibberish...
my time would have probably been better spent masturbating