@Will - You cannot use an LED as a detector diode. The turn on voltage is too high. Your best bet is to stay with the 1N34 germanium diode which is readily available.
You really need a variable capacitor which will allow you to tune into the desired station.
Look for Ham Radio flea markets or clubs in your area. What is your location?
You can try building your own with two concentric metal tubes that slide one into the other with a separating dielectric. I have tried using aluminum foil but was not successful.
You really need a variable capacitor which will allow you to tune into the desired station.
Look for Ham Radio flea markets or clubs in your area. What is your location?
You can try building your own with two concentric metal tubes that slide one into the other with a separating dielectric. I have tried using aluminum foil but was not successful.