Radio & Antique Equipment Parts
Earphone - Crystal, 3.5mm, High Impedance
High impedance crystal earphone - very sensitive and works great with crystal radios. Has 3 a foot cord and miniature (3.5 mm) plug.
Diode - 1N34A Germanium, Sold individually
A semiconductor device which passes current in the forward direction(from anode to cathode), and blocks current in the opposite direction.