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File:Atwater Kent Type TA detector and 2 stage AF amplifier - Bayernhof Museum - DSC06318.JPG

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English: Antique vacuum tube radio receiver, the Atwater Kent Model 4660 (9C) from 1924. Atwater Kent radios were distinctive because they did not have a metal case; the components were installed on a wooden "breadboard" in the open. This radio was a tuned radio frequency design, with the lefthand tube a single stage radio frequency amplifier and the three tubes on the right a grid leak detector and two stages of audio amplifier. The dials of the two variometers had to be tuned in tandem to the desired station. Information from Atwater Kent breadboard receivers, SparkMuseum.com website. Exhibit in the Bayernhof Museum, 225 St. Charles Place, O'Hara Township, Pittsburgh, Pennsylvania, USA. Photography was permitted in the museum without restriction.
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I, the copyright holder of this work, hereby publish it under the following license:
Creative Commons CC-Zero This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication.
The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.

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current11:13, 31 October 2013Thumbnail for version as of 11:13, 31 October 20134,536 × 2,261 (2.71 MB)Daderot (talk | contribs)User created page with UploadWizard

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