1924 Atwater Kent
Model 10A
Model 10A
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Cabinet Style: "Open Frame" (Breadboard)
Tube Count: 5 Circuit Type: TRF Power: Batteries; 6v, 45v & 90v Bands: Broadcast Tubes: '01A (5) Speaker Type: Horn Shown with a model "H" horn (1925) Original Cost: $85.00* (without tubes or speaker) *What cost $85 in 1924 would cost more than $1100.00 today! |
Calvin Coolidge was the first president to address the American people over the radio.
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Click to read the Radio Almanac for 1924
This 5 tube battery radio uses 2 of it's 201A tubes (introduced in 1922 by RCA) as a two stage RF amplifier with each stage individually tuned. The next 201a is used as the detector and the last 2 as a two stage audio amplifier.
The 201a was the first tube which could successfully amplify RF signals which increasing a radios sensitivity allowing it to pick up more stations without the use of the problematic regeneration circuit. However, when a radio can receive more stations, accurate tuning (selectivity) becomes much more critical, thus the need for 3 tuning dials.
The two stage audio amplifier allows to operate a loudspeaker. By using a speaker instead of headphones radio became something that the whole family could enjoy at the same time.
The 201a was the first tube which could successfully amplify RF signals which increasing a radios sensitivity allowing it to pick up more stations without the use of the problematic regeneration circuit. However, when a radio can receive more stations, accurate tuning (selectivity) becomes much more critical, thus the need for 3 tuning dials.
The two stage audio amplifier allows to operate a loudspeaker. By using a speaker instead of headphones radio became something that the whole family could enjoy at the same time.
Arthur Atwater Kent (1873-1949) founded his company in 1895 making electric motors, fans and automobile electric and ignition parts. In 1921 he began producing radio components and then in 1923 complete radios. By 1925 his company was the worlds leader and his "Atwater Kent Hour" was the most popular show on the radio.
A victim of the depression, he closed his factory in 1936. Before retiring, he founded the Atwater Kent Museum in Philadelphia. You can visit the museum at www.philadelphiahistory.org.
A victim of the depression, he closed his factory in 1936. Before retiring, he founded the Atwater Kent Museum in Philadelphia. You can visit the museum at www.philadelphiahistory.org.
