crystal set

Noun

 * 1)  An early radio receiver, having no electrical power supply except the radio waves themselves; it used a crystal of lead or cadmium sulphide and a wire (the cat's whisker) touching the crystal's surface.

Translations

 * Catalan: ràdio de galena
 * Chinese:
 * Mandarin:
 * Danish: krystalapparat, krystalmodtager
 * Dutch:
 * Finnish: kideradio
 * French: récepteur à cristal,, poste de radio à cristal
 * German: Detektorempfänger, Detektorradio
 * Italian: radio a galena
 * Norwegian:
 * Bokmål: krystallapparat, krystallmottaker
 * Nynorsk: krystallapparat, krystallmottakar
 * Portuguese: rádio de galena
 * Russian: дете́кторный приёмник
 * Spanish: radio a galena
 * Swedish: kristallapparat,
 * Volapük: kristadaparat