An interesting project Kristin, for the AM broadcast band, 60 turns of 24 gauge enamel covered wire with a 0.0005mfd tuning capacitor in parallel was the norm. Size of the crystal is unimportant so long as it has a "hot" spot (after the war I used Germanium point contact diodes removed from government surplus equipment) A high impedance pair of headphones are required, the higher the better but at least 3000 ohms. Let us all know how well it works.
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Harry |