vishu412k

circuit is given.....problem is designing the circuit to given : Av1=2, Av2=2 Given data is; RL=10K (RL=RE+RF) fL=500hz hie=4.5K hfe=240 VCEQ1=VCEQ2=5V ICQ=2mA For any other data, parameters of BC147A can be used. Requirement To calc. the resistor and capacitor values to get reqd. gain. (Av=Av1*Av2) VCC has to be taken apropriately. (Frequency generator source resistance is 50ohms)

isnt it possible to use the base-collector diode as well. how does that work? also, in case of the base emitter diode, how do the negative charge carriers of collector take part in current flow. ???

i need to know how to use 'transistor as a diode'......and its applications. i know of transistor as a switch, but as diode.....dos'nt make sense, unless its the same thing! the problem is, someone else has been asked to speak on 'transistor as switch'! seminar's in 10 hours ! HELP PLEASE!! :o :'(