File:1915 Armstrong receiver.gif
1915_Armstrong_receiver.gif (308 × 256 pixels, file size: 6 KB, MIME type: image/gif)
File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 20:17, 15 January 2024 | ![]() | 308 × 256 (6 KB) | AndreAdrian | Uploaded a work by Edwin H. Armstrong from Some recent developments in the audion receiver with UploadWizard |
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