I am trying to develop an AM transmitter but I am having problems with getting a variable capacitor and inductor (for the rf circuit) in my location. I was able to find a choke coil with an inductance of 150uH but most of the circuits I was able to find in the net have 200uH inductors. Is it possible to use this inductor?
Here is the link to where I am going to base my circuit on: http://www.zen22142.zen.co.uk/Circuits/rf/amtx.htm
and here is the link to the inductor I am planning to use: http://www.e-gizmo.net/oc/index.php?route=product/product&product_id=45861&search=150uH
for the capacitor of the rf amplifier, only 75pF trimmer capacitors are available in our nearby shop so can I use constant capacitors in parallel so I could still control the capacitance?