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<blockquote style="position: relative; padding-left: 55px;"><section><a href="https://mk.absturztau.be/notes/a0wlt7hpmz5p01de">niconiconi (niconiconi@mk.absturztau.be)'s status on Saturday, 23-Nov-2024 03:00:40 JST</a><a href="https://mk.absturztau.be/@niconiconi" title="niconiconi@mk.absturztau.be"><img src="https://gnusocial.jp/theme/gnusocialjp/default-avatar-stream.png" width="48" height="48" alt="niconiconi" style="position: absolute; left: 0; top: 0;">niconiconi</a></section><article><p>"Mom, can we buy a picosecond electronics switch?"<br>"No, we have a picosecond switch at home."<br><i>The picosecond switch at home</i><br>Mercury-wetted relay.<br><a href="https://w140.com/tekwiki/wiki/109">https://w140.com/tekwiki/wiki/109</a> <a href="https://mk.absturztau.be/tags/electronics" rel="tag">#electronics</a></p></article><footer><a rel="bookmark" href="https://gnusocial.jp/conversation/4052254#notice-7917687">In conversation</a><time datetime="2024-11-23T03:00:40+09:00" title="Saturday, 23-Nov-2024 03:00:40 JST">about 2 days ago</time> <span>from <span><a href="https://mk.absturztau.be/notes/a0wlt7hpmz5p01de" rel="external" title="Sent from mk.absturztau.be via ActivityPub">mk.absturztau.be</a></span></span><a href="https://mk.absturztau.be/notes/a0wlt7hpmz5p01de">permalink</a><h4>Attachments</h4><ol><li><label><a rel="external" href="https://gnusocial.jp/attachment/3547307">Schematic of the Tektronix 110 picosecond pulse generator: A 50-ohm coax cable is charged to a DC voltage, then discharged into a 50-ohm load via a mercury switch.</a></label><br><a href="https://misskey-taube.s3.eu-central-1.wasabisys.com/files/webpublic-11fe6f21-2105-434d-a9e7-b644ebfed5b6.png" rel="external">https://misskey-taube.s3.eu-central-1.wasabisys.com/files/webpublic-11fe6f21-2105-434d-a9e7-b644ebfed5b6.png</a></li><li><label><a rel="external" href="https://gnusocial.jp/attachment/3547308">fig. 1-1. A double exposure photograph of the output pulse from the Tektronix Type 110 (no external charge line) and a 1 gigacyclel sec timing train. The waveforms are displayed on a Tektronix 0.12 nsec risetime research-type oscilloscope. This photograph shows the risetime to be well under 0.25 nsec. The minimum pulse width is approximately 0.5 nsec. Note the freedom from overshoot.</a></label><br><a href="https://misskey-taube.s3.eu-central-1.wasabisys.com/files/f9e77ece-393e-45b6-8664-a883d686d881.webp" rel="external">https://misskey-taube.s3.eu-central-1.wasabisys.com/files/f9e77ece-393e-45b6-8664-a883d686d881.webp</a></li><li><label><a rel="external" href="https://gnusocial.jp/attachment/3547309">Mercury Relay teardown: reed switch, bias magnet, driving coil &amp; mounting hardware</a></label><br><a href="https://misskey-taube.s3.eu-central-1.wasabisys.com/files/bd03035b-ecc5-4d69-988a-f180f968202f.webp" rel="external">https://misskey-taube.s3.eu-central-1.wasabisys.com/files/bd03035b-ecc5-4d69-988a-f180f968202f.webp</a></li><li><label><a rel="external" href="https://gnusocial.jp/attachment/3547310">Mercury-wetted reed switch, close-up shot.</a></label><br><a href="https://misskey-taube.s3.eu-central-1.wasabisys.com/files/59b08def-4d35-491c-95a6-5d256280c352.webp" rel="external">https://misskey-taube.s3.eu-central-1.wasabisys.com/files/59b08def-4d35-491c-95a6-5d256280c352.webp</a></li><li><article><header><div>Domain not in remote thumbnail source whitelist: w140.com</div><h5><a href="https://w140.com/tekwiki/wiki/109">109 - TekWiki</a></h5><div></div></header><div></div><footer></footer></article></li></ol></footer></blockquote>

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niconiconi (niconiconi@mk.absturztau.be)'s status on Saturday, 23-Nov-2024 03:00:40 JST niconiconi
"Mom, can we buy a picosecond electronics switch?"
"No, we have a picosecond switch at home."
The picosecond switch at home
Mercury-wetted relay.
https://w140.com/tekwiki/wiki/109 #electronics
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