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Summary
DescriptionBigrid transmitter.jpg
English: Bigrid tetrode application as self-oscillating AM transmitter. H is a source of high voltage.
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Licensing
Public domainPublic domainfalsefalse
This media file is in the public domain in the United States. This applies to U.S. works where the copyright has expired, often because its first publication occurred prior to January 1, 1929, and if not then due to lack of notice or renewal. See this page for further explanation.
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inception
1921
MIME type
image/jpeg
checksum
e8775b7939846900cf88660a8b2f955075dc8d92
determination method: SHA-1
data size
718,264 byte
height
1,046 pixel
width
1,216 pixel
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04:37, 12 December 2020
1,216 × 1,046 (701 KB)
Gutten på Hemsen
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17:48, 8 January 2015
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