Hi,
I've got doubts with this circuit which is in Question 7 of the page..
http://www.allaboutcircuits.com/worksheets/filter.html
My Questions are.... (ALL QUESTIONS ARE EXPLAINED NEATLY IN ATTACHMENT)
1) Why is antenna coupled to the tank circuit and why not attached directly to the top of tank circuit?
2) How can the diode clip of the negative part of the voltage ? since the received voltage will be less than 0.6 volts and this voltage is not sufficient to turn on the diode... it might be greater than or equal to 0.6 volts if there are powerful transmitters nearby but I've got serious doubts about this...
3) What is the need for the potentiometer kinda stuff near base of transistor?
I am trying to build a receiver or something like that so I am asking all these questions.. I hav also got a thread in radio and communications forum.. thanks for all help in advance.. Waiting for replies...
I've got doubts with this circuit which is in Question 7 of the page..
http://www.allaboutcircuits.com/worksheets/filter.html
My Questions are.... (ALL QUESTIONS ARE EXPLAINED NEATLY IN ATTACHMENT)
1) Why is antenna coupled to the tank circuit and why not attached directly to the top of tank circuit?
2) How can the diode clip of the negative part of the voltage ? since the received voltage will be less than 0.6 volts and this voltage is not sufficient to turn on the diode... it might be greater than or equal to 0.6 volts if there are powerful transmitters nearby but I've got serious doubts about this...
3) What is the need for the potentiometer kinda stuff near base of transistor?
I am trying to build a receiver or something like that so I am asking all these questions.. I hav also got a thread in radio and communications forum.. thanks for all help in advance.. Waiting for replies...
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