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Color Television Systems. January, 1951 (rfcafe.com)
2 points by areoform on Aug 31, 2023 | past
The New Radio Garage Door Opener (1933) (rfcafe.com)
2 points by buescher on May 15, 2020 | past | 1 comment
Magnetic Amplifiers: How They Work, What They Do July 1960 Popular Electronics (rfcafe.com)
3 points by basicplus2 on Dec 6, 2019 | past
Visions of 1946 (1936) (rfcafe.com)
2 points by bendykstra on Feb 5, 2017 | past | 1 comment

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