Crystal Radio Kit - POOF-SLINKY: Crystal Radio Kit. Kids can build a working crystal radio that will pick up radio stations and allow them to experiment with radio waves while learning chemistry basics. No batteries or soldering are needed. This package contains: one diode, one base, four rubber bands, one tuning rod, two connecting wires, one coil wire, one sand paper, one earphone, three nuts, three bolts, four washers, one coil tube, one tuning ball and one instruction manual. Meets or exceeds ASTM F 963. Recommended for children ages 8 and up. WARNING: CHOKING HAZARD-Small parts. Not for children under 3 years. Imported.View Product Specs
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