Transistor Biasing is grounded

[basit15670]

hi
i m working on a transistor "MA COM PH9086"
it shows negligible output when it is attached in normal fashion but when its input is grounded then it shows the desired output
i cannot understand this thing
why this is happening
can any1 help me out?
thanking u in anticipation

 

[goldsmith]

Dear basit
Hi
Can you show me the schematic that you are referring to ? how do you expect that without schematic , i or the other ones help you ?
Best Wishes
Goldsmith

 

[ayaznaqshband]

hi
i m working on a transistor "MA COM PH9086"
it shows negligible output when it is attached in normal fashion but when its input is grounded then it shows the desired output
i cannot understand this thing
why this is happening
can any1 help me out?
thanking u in anticipation

This is basically known as DC Return Path
http://www.ifwtech.co.uk/g3sek/tr-bias/tr-bias1.htm
Read out the first topic in this link. It might be of some help