In metal housing.The first series were made of black painted
copper, later receivers were made of a different metal.The top is Bakelite.With
the help of the crystal and two nickel-plated sliding
levers on the front and rear (Antenna and Detector) the
device can be tuned.
Reception on medium wave.
The range was between 30 and 60 km, when
using a long antenna.
To receive maritime transmissions, a maximum range of
195 to 975 km was specified, depending on the height of
the antenna used and the strength of the transmitter.
A two-tube amplifier, the Federal Junior
Amplifier No. 20, could be included some time later.
This enabled playback
using a loudspeaker and also further removed stations
could be made audible.
In March 1922 the first ads for the
Federal Jr. appeared.
The original price was $25,
later reduced to $20.
Data
Serial number:
Dimensionsn (h×b×d):
21.6 × 22.4 x 15.2 cm
Made in:
1922
Purchased in:
2018
What was broadcast in 1922?
Listen to "Chicago" played by
Baileys Lucky Seven,
recorded in 1922
First advertisement in Radio News,
March 1922
Advertisement in Radio Digest Illustrated August
26, 1922. In this ad the amplifier is also mentioned.
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