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Below is a list of the most recent file uploads. See the gallery of new files for a more visual overview.
- 19:59, 15 January 2023 Spinningspark talk contribs uploaded a new version of File:Okta symbols for teletype.svg (Correcting units used)
- 10:38, 15 January 2023 Spinningspark talk contribs uploaded File:Okta symbols for hand drawn maps.svg ({{Information |Description=cloud cover symbols used on hand drawn maps |Source=Self created using Inkscape |Date=15th January 2023 |Author=~~~ |other_versions= }} == Licensing == {{cc-by-sa-3.0|Courtesy [http://en.wikipedia.org/wiki/User:Spinningspark Spinningspark at Wikipedia]}} {{KeepLocal}})
- 10:33, 15 January 2023 Spinningspark talk contribs uploaded File:Okta symbols for teletype.svg ({{Information |Description=Cloud cover symbols used on 5-bit weather teletypes |Source=Self created using Inkscape |Date=15th January 2023 |Author=~~~ |other_versions= }} == Licensing == {{cc-by-sa-3.0|Courtesy [http://en.wikipedia.org/wiki/User:Spinningspark Spinningspark at Wikipedia]}} {{KeepLocal}})
- 22:19, 6 January 2023 Spinningspark talk contribs uploaded File:Geological map of Southern England (part upload for assessment).png ({{Information |Description=Part of geological map of Southern England |Source=Geological Map of Great Britain: Sheet 2 ("10-mile" map) |Date=2nd edition copyright 1957 (expired 2007) |Author=Ordnance Survey |other_versions= }} == Licensing == {{PD-UKGov}} {{KeepLocal}} {{Do not move to Commons|reason=temporary partial upload for Graphics lab assessment only. If commons want it, the whole document should be uploaded}})
- 14:36, 28 November 2022 Spinningspark talk contribs uploaded a new version of File:Modulation phasors.svg (Fix SVG error)
- 17:31, 9 September 2022 Spinningspark talk contribs uploaded File:Modulation phasors.svg ({{Information |Description=Phasor diagrams for modulated signals |Source=Self created using Inkscape |Date=9th September 2022 |Author=~~~ |other_versions= }} == Licensing == {{cc-by-sa-3.0|Courtesy [http://en.wikipedia.org/wiki/User:Spinningspark Spinningspark at Wikipedia]}} {{KeepLocal}})
- 16:32, 13 May 2022 Spinningspark talk contribs uploaded File:Stage at Elysian Grove.jpg ({{Information |Description=Outdoor concert at Elysian Grove, 1900s |Source=[https://www.ceredigion.gov.uk/index.cfm?articleid=5687 Ceredigion County Council website] (deadlink), [https://web.archive.org/web/20120903125936/https:/www.ceredigion.gov.uk/index.cfm?articleid=5687 archive] |Date=1900–1905 (date estimated by Ceredigion County Council senior archivist based on female hat styles in a personal communication) |Author=unknown |other_versions= }} == Licensing == {{PD-UK-unknown}} {{K...)
- 13:20, 3 November 2021 Spinningspark talk contribs uploaded File:Genghis Khan Battle scene.png ({{Non-free fair use}} {{Non-free use rationale |Article=Genghis Khan (TV programme) |Description=Screen shot from BBC Genghis Khan documentary |Source= Original media |Portion=Small part. Only a part of single frame from an hour long video has been used |Low_resolution=Is low and only as much resolution as necessary to impart a flavour of the film |Purpose=To aid readers in assessing the nature of the production. |Replaceability=No free equivalent is available. The image will not become becom...)
- 13:08, 3 November 2021 Spinningspark talk contribs uploaded File:Genghis Khan video.png ({{Non-free fair use}} {{Non-free use rationale |Article=Genghis Khan (TV programme) |Description=Cover of released Genghis Khan DVD |Source= Original media |Portion=100% |Low_resolution=Is low and only as much resolution as necessary to identify and show the person described in the article, not enough to be used for piracy |Purpose=It aids readers in identifying the product. |Replaceability=No free equivalent is available. The image will eventually become free when the copyright expires |othe...)
- 23:15, 5 October 2021 Spinningspark talk contribs reverted File:Gotmymindsetonyou63.png to an old version (Reverted to version as of 22:48, 10 December 2019 (UTC). Since no longer non-free, no reason not to have the higher quality version)
- 12:36, 25 September 2021 Spinningspark talk contribs uploaded File:Melville ipotane.png ({{Information |Description=Image of an ipotane from Melville's ''Travels'' |Source=''The Travels of Sir John Mandeville'', Wyken and Worde, 1499, as reproduced in |Date=published 1449 |Author=John Mandeville (fl. 1357) |other_versions= }} == Licensing == {{PD-old-70}} {{KeepLocal}})
- 12:12, 29 July 2021 Spinningspark talk contribs reverted File:Twisted pair nominal impedance.svg to an old version (Reverted to version as of 09:28, 8 January 2021 (UTC) Edit summary said centering annotation, but actually put it off centre)
- 12:28, 28 August 2020 Spinningspark talk contribs uploaded File:Zimmerli mercury pressure gauge.svg ({{Information |Description=Zimmerli's mercury pressure gauge |Source=Self created using Inkscape |Date=28th August 2020 |Author=~~~ |other_versions= }} == Licensing == {{cc-by-sa-3.0|Courtesy [http://en.wikipedia.org/wiki/User:Spinningspark Spinningspark at Wikipedia]}} {{KeepLocal}})
- 20:43, 27 August 2020 Spinningspark talk contribs uploaded a new version of File:Kamerlingh-Onnes mercury pressure gauge.svg (Make end cap more explicit)
- 17:50, 27 August 2020 Spinningspark talk contribs uploaded File:Kamerlingh-Onnes mercury pressure gauge.svg ({{Information |Description=Kamerlingh Onnes mercury pressure gauge |Source=Self created using Inkscape |Date=27th August 2020 |Author=~~~ |other_versions= }} == Licensing == {{cc-by-sa-3.0|Courtesy [http://en.wikipedia.org/wiki/User:Spinningspark Spinningspark at Wikipedia]}} {{KeepLocal}})
- 17:44, 27 August 2020 Spinningspark talk contribs uploaded a new version of File:Mercury pressure gauge.svg (Add graticule)
- 16:39, 27 August 2020 Spinningspark talk contribs uploaded File:Mercury pressure gauge.svg ({{Information |Description=Open differential mercury pressure gauge |Source=Self created using Inkscape |Date=27th August 2020 |Author=~~~ |other_versions= }} == Licensing == {{cc-by-sa-3.0|Courtesy [http://en.wikipedia.org/wiki/User:Spinningspark Spinningspark at Wikipedia]}} {{KeepLocal}})
- 15:44, 23 August 2020 Spinningspark talk contribs uploaded File:Two tone general test.svg ({{Information |Description=General test setup for two-tone testing |Source=Self created using Inkscape after diagram in cited source |Date=23rd August 2020 |Author=~~~ |other_versions= }} == Licensing == {{cc-by-sa-3.0|Courtesy [http://en.wikipedia.org/wiki/User:Spinningspark Spinningspark at Wikipedia]}} {{KeepLocal}} == References == * Pedro, José Carlos; Carvalho, Nuno Borges, ''Intermodulation Distortion in Microwave and Wireless Circuits'', Artech House, 2003 {{ISBN|1580536913}}.)
- 14:09, 23 August 2020 Spinningspark talk contribs uploaded a new version of File:Two tone Rx test (off air).svg (Change to more conventional left-to-right signal flow)
- 14:04, 23 August 2020 Spinningspark talk contribs uploaded a new version of File:Two tone Rx test (direct).svg (Change to more conventional left-to-right signal flow)
- 14:35, 22 August 2020 Spinningspark talk contribs uploaded File:Zolotarev function 8th and 9th degree.svg (== Summary == {{Information |Description=Zolotarev polynomials of the 8th (left) and 9th (right) degrees |Source=Self created using Inkscape after diagram in cited source |Date=22nd August 2020 |Author=<b style="background:#FAFAD2;color:#C08000">Spinning</b><b style="color:#4840A0">Spark</b> |other_versions= }} == Licensing == {{cc-by-sa-3.0|Courtesy [http://en.wikipedia.org/wiki/User:Spinningspark Spinningspark at Wikipedia]}} {{KeepLocal}}...)
- 11:46, 22 August 2020 Spinningspark talk contribs uploaded File:Zolotarev-Chebyshev filter comparison.svg ({{Information |Description=Comparison of insertion losss of 7th-order Achieser-Zolotarev filter and 7th-order Chebyshev filter |Source=Self created using Inkscape after diagram in cited source |Date=22nd August 2020 |Author=~~~ |other_versions= }} == Licensing == {{cc-by-sa-3.0|Courtesy [http://en.wikipedia.org/wiki/User:Spinningspark Spinningspark at Wikipedia]}} {{KeepLocal}} == References == * Cameron, Richard J.; Kudsia, Chandra M.; Mansour, Raafat R., ''Microwave Filters for Communicat...)
- 14:21, 2 August 2020 Spinningspark talk contribs uploaded File:Reciprocity example ports 2 to 1.svg ({{Information |Description=Reciprocity in an asymmetrical attenuator - reverse direction |Source=Self created using Inkscape |Date=2nd August 2020 |Author=~~~ |other_versions= }} == Licensing == {{cc-by-sa-3.0|Courtesy [http://en.wikipedia.org/wiki/User:Spinningspark Spinningspark at Wikipedia]}} {{KeepLocal}})
- 14:21, 2 August 2020 Spinningspark talk contribs uploaded File:Reciprocity example ports 1 to 2.svg ({{Information |Description=Reciprocity in an asymmetrical attenuator - forward direction |Source=Self created using Inkscape |Date=2nd August 2020 |Author=~~~ |other_versions= }} == Licensing == {{cc-by-sa-3.0|Courtesy [http://en.wikipedia.org/wiki/User:Spinningspark Spinningspark at Wikipedia]}} {{KeepLocal}})
- 14:20, 2 August 2020 Spinningspark talk contribs uploaded File:Reciprocity example circuit.svg ({{Information |Description=An asymmetrical attenuator |Source=Self created using Inkscape |Date=2nd August 2020 |Author=~~~ |other_versions= }} == Licensing == {{cc-by-sa-3.0|Courtesy [http://en.wikipedia.org/wiki/User:Spinningspark Spinningspark at Wikipedia]}} {{KeepLocal}})
- 21:03, 29 May 2020 Spinningspark talk contribs uploaded File:Preset symbols.svg ({{Information |Description=Preset trimmer circuit symbols |Source=Self created using Inkscape |Date=29th May 2020 |Author=~~~ |other_versions= }} == Licensing == {{cc-by-sa-3.0|Courtesy [http://en.wikipedia.org/wiki/User:Spinningspark Spinningspark at Wikipedia]}} {{KeepLocal}})
- 12:54, 18 May 2020 Spinningspark talk contribs uploaded File:Two tone Rx test (off air).svg ({{Information |Description=Two-tone testing of receivers; off-air method |Source=Self created using Inkscape after diagram in reference |Date=6th April 2020 |Author=~~~ |other_versions= }} == Licensing == {{cc-by-sa-3.0|Courtesy [http://en.wikipedia.org/wiki/User:Spinningspark Spinningspark at Wikipedia]}} {{KeepLocal}} == References == * [https://apps.dtic.mil/docs/citations/ADA617071 ''Electronic Warfare and Radar Systems Engineering Handbook''] 4th edition, Naval Air Warefare Center Weap...)
- 12:53, 18 May 2020 Spinningspark talk contribs uploaded File:Two tone Rx test (direct).svg ({{Information |Description=Two-tone testing of receivers with direct injection into UUT |Source=Self created using Inkscape after diagram in reference |Date=6th April 2020 |Author=~~~ |other_versions= }} == Licensing == {{cc-by-sa-3.0|Courtesy [http://en.wikipedia.org/wiki/User:Spinningspark Spinningspark at Wikipedia]}} {{KeepLocal}} == References == * [https://apps.dtic.mil/docs/citations/ADA617071 ''Electronic Warfare and Radar Systems Engineering Handbook''] 4th edition, Naval Air Waref...)
- 14:13, 5 May 2020 Spinningspark talk contribs uploaded File:Henley-Foster telegraph instrument.png ({{Information |Description=Henley-Foster telegraph instrument |Source=J.J. Fahie, A History of Electric Telegraphy, to the Year 1837, London: E. & F.N. Spon, 1884 |Date=published 1884 |Author=Shaffner, Taliaferro Preston, ''The Telegraph Manual'', Pudney & Russell, 1859. |other_versions= }} == Licensing == {{PD-old-70}} {{KeepLocal}})
- 23:13, 28 April 2020 Spinningspark talk contribs uploaded File:Schilling calling system.png ({{Information |Description=Pavel Schilling's calling system for his needle telegraph |Source=J.J. Fahie, A History of Electric Telegraphy, to the Year 1837, London: E. & F.N. Spon, 1884 |Date=published 1884 |Author=John Joseph Fahie (1846-1934) |other_versions= }} == Licensing == {{PD-old-70}} {{KeepLocal}})
- 08:22, 27 April 2020 Spinningspark talk contribs uploaded File:Schilling one-needle telegraph.png ({{Information |Description=One needle instrument from Schilling's telegraph |Source=J.J. Fahie, ''A History of Electric Telegraphy, to the Year 1837'', London: E. & F.N. Spon, 1884 |Date=published 1884 |Author=John Joseph Fahie (1846-1934) |other_versions= }} == Licensing == {{PD-old-70}} {{KeepLocal}})
- 12:42, 9 April 2020 Spinningspark talk contribs uploaded a new version of File:Cauer I example.svg (Correction to component value)
- 18:17, 6 April 2020 Spinningspark talk contribs uploaded File:Bott-Duffin 3-4.svg ({{Information |Description=Example of Bott-Duffin synthesis steps 3 and 4 |Source=Self created using Inkscape |Date=6th April 2020 |Author=~~~ |other_versions= }} == Licensing == {{cc-by-sa-3.0|Courtesy [http://en.wikipedia.org/wiki/User:Spinningspark Spinningspark at Wikipedia]}} {{KeepLocal}})
- 18:16, 6 April 2020 Spinningspark talk contribs uploaded File:Bott-Duffin 1-2.svg ({{Information |Description=Example of Bott-Duffin synthesis steps 1 and 2 |Source=Self created using Inkscape |Date=6th April 2020 |Author=~~~ |other_versions= }} == Licensing == {{cc-by-sa-3.0|Courtesy [http://en.wikipedia.org/wiki/User:Spinningspark Spinningspark at Wikipedia]}} {{KeepLocal}})
- 15:29, 19 March 2020 Spinningspark talk contribs uploaded File:User Spinningspark.jpg ({{Information |Description=User Spinningspark |Source=Personal document |Date=November 2019 |Author=Timpson: work for hire |other_versions= }} == Licensing == {{cc-by-sa-3.0|Courtesy [http://en.wikipedia.org/wiki/User:Spinningspark Spinningspark at Wikipedia]}} {{Do not move to Commons|reason=Commons:Commons:EDUSE, unlikely to be of use outside Wikipedia}})
- 10:15, 18 March 2020 Spinningspark talk contribs uploaded a new version of File:Wigwag motions.png (Undo left and right interchange and small cleanups of background)
- 23:07, 14 March 2020 Spinningspark talk contribs uploaded File:Wigwag flag colours.svg ({{Information |Description=Wigwag flag available colours |Source=Self created using Inkscape |Date=14th March 2020 |Author=~~~ |other_versions= }} == Licensing == {{cc-by-sa-3.0|Courtesy [http://en.wikipedia.org/wiki/User:Spinningspark Spinningspark at Wikipedia]}} {{KeepLocal}})
- 17:57, 11 March 2020 Spinningspark talk contribs uploaded File:Porcupine, head and shoulders.png ({{Information |Description=Cheyenne leader Porcupine in full headress |Source=Library of Congress: Harris & Ewing collection, [https://www.loc.gov/pictures/collection/hec/item/2016856592/ reproduction number LC-DIG-hec-15519] |Date=1905 or later |Author=Harris & Ewing photo studio |other_versions= }} {{PD-Harris-Ewing}})
- 17:51, 11 March 2020 Spinningspark talk contribs uploaded File:Porcupine, full length.png ({{Information |Description=Cheyenne leader Porcupine in full headress |Source=Library of Congress: Harris & Ewing collection, [https://www.loc.gov/pictures/collection/hec/item/2016856594/ reproduction number LC-DIG-hec-15521] |Date=1905 or later |Author=Harris & Ewing photo studio |other_versions= }} {{PD-Harris-Ewing}})
- 15:12, 11 March 2020 Spinningspark talk contribs uploaded a new version of File:Wigwag motions.png (Slight layout adjustment)
- 14:47, 11 March 2020 Spinningspark talk contribs uploaded File:Wigwag tree station, upper Potomac.png ({{Information |Description=A wigwag station in a tree on the Upper Potomac. |Source=Albert J. Myer, ''A Manual of Signals'', D. Van Nostrand, 1872 |Date=published 1872 |Author=Albert J. Myer (1828-1880) |other_versions= }} == Licensing == {{PD-old-70}} {{KeepLocal}})
- 14:45, 11 March 2020 Spinningspark talk contribs uploaded File:Wigwag station near Washington.png ({{Information |Description=A wigwag station near Washington. |Source=Albert J. Myer, ''A Manual of Signals'', D. Van Nostrand, 1868 |Date=published 1868 |Author=Albert J. Myer (1828-1880) |other_versions= }} == Licensing == {{PD-old-70}} {{KeepLocal}})
- 14:43, 11 March 2020 Spinningspark talk contribs uploaded File:Wigwag motions.png ({{Information |Description=Wigwag signalling motions. |Source=Albert J. Myer, ''A Manual of Signals'', D. Van Nostrand, 1866 |Date=published 1866 |Author=Albert J. Myer (1828-1880) |other_versions= }} == Licensing == {{PD-old-70}} {{KeepLocal}})
- 14:42, 11 March 2020 Spinningspark talk contribs uploaded File:Wigwag masthead signal station, Richmond.png ({{Information |Description=A wigwag station on the masthead of a US ship at Richmond. |Source=Albert J. Myer, ''A Manual of Signals'', D. Van Nostrand, 1868 |Date=published 1868 |Author=Albert J. Myer (1828-1880) |other_versions= }} == Licensing == {{PD-old-70}} {{KeepLocal}})
- 14:41, 11 March 2020 Spinningspark talk contribs uploaded File:Wigwag 130 ft tower.png ({{Information |Description=130 ft wigwag tower used in operations against Richmond in the American Civil War |Source=Albert J. Myer, ''A Manual of Signals'', D. Van Nostrand, 18668 |Date=published 1868 |Author=Albert J. Myer (1828-1880) |other_versions= }} == Licensing == {{PD-old-70}} {{KeepLocal}})
- 14:39, 11 March 2020 Spinningspark talk contribs uploaded File:Wigwag 125 ft tower.png ({{Information |Description=125 ft wigwag tower used in operations against Richmond in the American Civil War. |Source=Albert J. Myer, ''A Manual of Signals'', D. Van Nostrand, 1866 |Date=published 1866 |Author=Albert J. Myer (1828-1880) |other_versions= }} == Licensing == {{PD-old-70}} {{KeepLocal}})
- 11:18, 7 March 2020 Spinningspark talk contribs uploaded a new version of File:Foy-Breguet manipulator.png (slight cropping)
- 11:13, 7 March 2020 Spinningspark talk contribs uploaded File:Foy-Breguet manipulator.png ({{Information |Description=One of the pair of manipulators used by operators on the Foy-Breguet telegraph |Source=Shaffner, ''The Telegraph Manual'', p. 329, Pudney & Russell, 1859 |Date=published 1859 |Author=Taliaferro Preston Shaffner |other_versions= }} == Licensing == {{PD-old-70}} {{KeepLocal}})
- 12:00, 2 November 2019 Spinningspark talk contribs uploaded File:Chappe alphabet.svg (Chappe code alphabet 1794)
- 17:20, 30 October 2019 Spinningspark talk contribs uploaded a new version of File:Edelcrantz code 636.svg (More representative of a closed shutter)