Activities/Turtle Art/Using Turtle Art Sensors: Difference between revisions
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[[File:XO crystalradio.jpg]] [[File:Xtalradioschematic.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 | This worked better on the XO1.5, presumably because of its higher processing speed. The headphones are not connected, instead 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. | ||
You can construct most of the crystal radio from common materials | You can construct most of the crystal radio from common materials | ||