James Kidder
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Could a crystal radio use a lead sulfide or lead selenide antenna an pick up in the infrared?
A crystal radio can utilize lead sulfide (PbS) or lead selenide (PbSe) as an antenna for infrared detection. These materials are semiconductors known for their sensitivity to infrared radiation, making them suitable for this application. The discussion confirms that both PbS and PbSe can effectively convert infrared signals into electrical signals, allowing for the reception of infrared frequencies.
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