Hello, I am following the schematic on this site. I am simulating the circuit with zero success. Is the jfet I am using suitable for this amp? Have I done something wrong?

 

I found the spice model of the J310 here.

 

What does "zero success" mean?

A J310 or it's SMT counterpart would be more appropriate for the input stage. You don't have to actually use "faint" input signals in your simulation. Go with something like 10 mV or a similar amplitude.

What is the purpose of the second 1kHz voltage source and why is the impedance of the source only 0.2 Ohm? Selectivity is non-existant and amplifier gain is way to high for this frequency range, which only compromises even further the probably already not stellar dynamic range of the receiver.

 

hi Light,
The Freq source of 324.259 is not 324kHz it is 324Hz.
Increased the source amplitude to 1mV for testing the sim.
This plot is what LTSpice shows.
E
BTW: it helps if you label the Nodes of interest.

 

This plot is what LTSpice shows.

The 384kHz station is missing. The output only shows the severely attenuated 1kHz/384Hz signal.