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For example, amplify the output of a crystal radio [[http://wiki.waggy.org/dokuwiki/electronics/crystalradio]]

For example, amplify the output of a crystal radio [[http://wiki.waggy.org/dokuwiki/electronics/crystalradio]]

[[File:XO crystalradio.jpg]]

[[File:XO crystalradio.jpg]]  [[File:Xtalradioschematic.jpg]]

This worked better on the XO1.5, presumably because of its higher processing speed. The headphones are omitted. A 0.1uF capacitor is connected between the radio output and the XO input to isolate the detector diode from the XO's DC bias. Theory predicts that a resistor to ground would be necessary at the radio output but practice indicates otherwise.

This worked better on the XO1.5, presumably because of its higher processing speed. The headphones are omitted. A 0.1uF capacitor is connected between the radio output and the XO input to isolate the detector diode from the XO's DC bias. Theory predicts that a resistor to ground would be necessary at the radio output but practice indicates otherwise.