Activities/Turtle Art/Using Turtle Art Sensors: Difference between revisions
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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. | ||
You can construct most of the crystal radio from common materials | |||
[[File:Inductor.jpg]] | |||
The tuned circuit inductor, 75 turns of insulated wire on a toilet paper core. | |||
==Links== | ==Links== | ||