Assertion: radio's receiver | /r/HasProperty | design
Facets:
value: from the early 20th century
type: TEMPORAL
value: specially
type: DEGREE
Source sentences:
text: The reflex receiver, invented in 1914 by Wilhelm Schloemilch and Otto von Bronk, and rediscovered and extended to multiple tubes in 1917 by Marius Latour and William H. Priess, was a design used in some inexpensive radios of the 1920s which enjoyed a resurgence in small portable tube radios of the 1930s and again in a few of the first transistor radios in the 1950s.
text: A shortwave radio is specially designed receiver that receives shortwave radio stations from places and countries far away from where you live and are "hidden" in between the standard AM and FM band on frequencies from about 3Mhz to 30Mhz.
text: The reflex receiver was a design from the early 20th century which consists of a single-stage TRF receiver but which used the same amplifying tube to also amplify the audio signal after it had been detected.