Seiko original 32.768KHZ 3215 (3.2*1.5mm) 12.5P
This circuit can be used to detect the weak magnetic field of any indoor wiring with current and amplify this magnetic field signal to a level sufficient to drive a magnetic earphone. The device uses a telephone pick-up coil to detect the magnetic field.
220V To 110V Transformer,220 To 110 Converter,220 To 110 Voltage Converter,110V Transformer
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