Can I get some help with a single transistor am receiver? Answered
I just built an AM radio circuit from a diagram I found on the net. I have everything hooked up correctly but I cannot get anything to come in. not even static.
The diagram can be seen here [http://www.circuitdiagram.org/images/simple-am-receiver-diagram.gif]
My thoughts are that maybe the signal is too weak for the ear phones I have and that I may need to use an op amp.
The coil is 26 gauge magnet wire wrapped around 80 times on a toilet paper roll. This should be equivalent to around 1mH according to the inductor calculator I used.
The trimmer was one I salvaged from a broken radio. It measures 10pF to 90pF.
Those combined should give me close to the AM frequency band range I need.
Can anyone offer any advice?