This special page shows all files uploaded to the English Wikipedia. (See also the list for Wikimedia Commons.) By default, the last uploaded files are shown at top of the list, but clicking on a column header will change the sorting.
Deleted files are not shown here but are included in the upload log.
| Date | Name | Thumbnail | Size | Description |
|---|---|---|---|---|
| 10:38, 15 January 2023 | Okta symbols for hand drawn maps.svg (file) |  |
15 KB | ((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)) |
| 22:19, 6 January 2023 | Geological map of Southern England (part upload for assessment).png (file) | .png) |
20.83 MB | ((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 | Modulation phasors.svg (file) |  |
93 KB | Fix SVG error |
| 16:32, 13 May 2022 | Stage at Elysian Grove.jpg (file) |  |
226 KB | ((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... |
| 12:36, 25 September 2021 | Melville ipotane.png (file) |  |
98 KB | ((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 | Twisted pair nominal impedance.svg (file) |  |
21 KB | 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 | Zimmerli mercury pressure gauge.svg (file) |  |
23 KB | ((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 | Kamerlingh-Onnes mercury pressure gauge.svg (file) |  |
135 KB | Make end cap more explicit |
| 17:44, 27 August 2020 | Mercury pressure gauge.svg (file) |  |
32 KB | Add graticule |
| 15:44, 23 August 2020 | Two tone general test.svg (file) |  |
32 KB | ((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 | Two tone Rx test (off air).svg (file) | .svg) |
27 KB | Change to more conventional left-to-right signal flow |
| 14:04, 23 August 2020 | Two tone Rx test (direct).svg (file) | .svg) |
29 KB | Change to more conventional left-to-right signal flow |
| 14:35, 22 August 2020 | Zolotarev function 8th and 9th degree.svg (file) |  |
40 KB | == 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 | Zolotarev-Chebyshev filter comparison.svg (file) |  |
19 KB | ((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 | Reciprocity example ports 2 to 1.svg (file) |  |
18 KB | ((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 | Reciprocity example ports 1 to 2.svg (file) |  |
16 KB | ((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 | Reciprocity example circuit.svg (file) |  |
13 KB | ((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 | Preset symbols.svg (file) |  |
19 KB | ((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)) |
| 14:13, 5 May 2020 | Henley-Foster telegraph instrument.png (file) |  |
1.22 MB | ((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 | Schilling calling system.png (file) |  |
244 KB | ((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 | Schilling one-needle telegraph.png (file) |  |
161 KB | ((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 | Cauer I example.svg (file) |  |
18 KB | Correction to component value |
| 18:17, 6 April 2020 | Bott-Duffin 3-4.svg (file) |  |
63 KB | ((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)) |
| 10:15, 18 March 2020 | Wigwag motions.png (file) |  |
87 KB | Undo left and right interchange and small cleanups of background |
| 14:47, 11 March 2020 | Wigwag tree station, upper Potomac.png (file) |  |
169 KB | ((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 | Wigwag station near Washington.png (file) |  |
170 KB | ((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)) |
| 14:42, 11 March 2020 | Wigwag masthead signal station, Richmond.png (file) |  |
138 KB | ((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)) |
| 17:20, 30 October 2019 | Edelcrantz code 636.svg (file) |  |
7 KB | More representative of a closed shutter |
| 14:02, 13 October 2019 | Gauss & Weber horizontal.svg (file) |  |
43 KB | ((Information |Description=Gauss and Weber needle telegraph code |Source=Self created using Inkscape |Date=13th October 2019 |Author=~~~ |other_versions= )) == Licensing == ((cc-by-sa-3.0|Courtesy [http://en.wikipedia.org/wiki/User:Spinningspark Spinningspark at Wikipedia])) ((KeepLocal)) |
| 14:01, 13 October 2019 | Schilling 1-needle horizontal.svg (file) |  |
49 KB | ((Information |Description=Schilling 1-needle telegraph code, 1820 |Source=Self created using Inkscape |Date=13th October 2019 |Author=~~~ |other_versions= )) == Licensing == ((cc-by-sa-3.0|Courtesy [http://en.wikipedia.org/wiki/User:Spinningspark Spinningspark at Wikipedia])) ((KeepLocal)) |
| 11:05, 6 October 2019 | Morse comparison.svg (file) |  |
38 KB | No substantive change, just applying the same edit to the cleaned up version to reduce size |
| 13:17, 5 October 2019 | C&W5 horizontal.svg (file) |  |
52 KB | ((Information |Description=Cooke and Wheatstone 5-needle telegraph code. Arranged for insertion in a table |Source=Self created using Inkscape |Date=5th October 2019 |Author=~~~ |other_versions= )) == Licensing == ((cc-by-sa-3.0|Courtesy [http://en.wikipedia.org/wiki/User:Spinningspark Spinningspark at Wikipedia])) ((KeepLocal)) |
| 00:15, 5 October 2019 | Morse needle horizontal.svg (file) |  |
44 KB | ((Information |Description=Morse as a needle telegraph code. Arranged for insertion in a table |Source=Self created using Inkscape |Date=5th October 2019 |Author=~~~ |other_versions= )) == Licensing == ((cc-by-sa-3.0|Courtesy [http://en.wikipedia.org/wiki/User:Spinningspark Spinningspark at Wikipedia])) ((KeepLocal)) |
| 00:14, 5 October 2019 | Highton1 horizontal.svg (file) |  |
46 KB | ((Information |Description=Highton 1-needle telegraph code. Arranged for insertion in a table |Source=Self created using Inkscape |Date=5th October 2019 |Author=~~~ |other_versions= )) == Licensing == ((cc-by-sa-3.0|Courtesy [http://en.wikipedia.org/wiki/User:Spinningspark Spinningspark at Wikipedia])) ((KeepLocal)) |
| 00:13, 5 October 2019 | Foy-Breguet horizontal.svg (file) |  |
38 KB | ((Information |Description=Foy-Breguet needle telegraph code. Arranged for insertion in a table |Source=Self created using Inkscape |Date=5th October 2019 |Author=~~~ |other_versions= )) == Licensing == ((cc-by-sa-3.0|Courtesy [http://en.wikipedia.org/wiki/User:Spinningspark Spinningspark at Wikipedia])) ((KeepLocal)) |
| 00:11, 5 October 2019 | C&W2 horizontal.svg (file) |  |
57 KB | Minor alignment adjustment |
| 00:07, 5 October 2019 | C&W1 horizontal.svg (file) |  |
45 KB | ((Information |Description=Cooke and Wheatstone 1-needle telegraph code. Arranged for insertion in a table |Source=Self created using Inkscape |Date=5th October 2019 |Author=~~~ |other_versions= )) == Licensing == ((cc-by-sa-3.0|Courtesy [http://en.wikipedia.org/wiki/User:Spinningspark Spinningspark at Wikipedia])) ((KeepLocal)) |
| 16:59, 22 September 2019 | Foy-Breguet code.svg (file) |  |
36 KB | ((Information |Description=Foy-Bregeut code |Source=Self created using Inkscape |Date=22nd September 2019 |Author=~~~ |other_versions= )) == Licensing == ((cc-by-sa-3.0|Courtesy [http://en.wikipedia.org/wiki/User:Spinningspark Spinningspark at Wikipedia])) ((KeepLocal)) == References == * Guillemin, Amédée, [https://archive.org/details/applicationsphy00guilgoog/page/n9 ''The Applications of Physical Forces''], Macmillan and Company, 1877 ((oclc|5894380237)). |
| 16:34, 22 September 2019 | Chappe code - c. 1809.svg (file) |  |
118 KB | ((Information |Description=Chappe code c. 1809 |Source=Self created using Inkscape |Date=22nd September 2019 |Author=~~~ |other_versions= )) == Licensing == ((cc-by-sa-3.0|Courtesy [http://en.wikipedia.org/wiki/User:Spinningspark Spinningspark at Wikipedia])) ((KeepLocal)) == References == * Bouchet, Olivier, ''Wireless Optical Communications'', Wiley, 2012 ((ISBN|1848213166)). |
| 16:31, 22 September 2019 | Chappe code - c. 1794.svg (file) |  |
12 KB | ((Information |Description=Chappe numeric code c. 1794 |Source=Self created using Inkscape |Date=22nd September 2019 |Author=~~~ |other_versions= )) == Licensing == ((cc-by-sa-3.0|Courtesy [http://en.wikipedia.org/wiki/User:Spinningspark Spinningspark at Wikipedia])) ((KeepLocal)) == References == * Wrixon, Fred B., ''Codes, Ciphers, Secrets and Cryptic Communication'', Black Dog & Leventhal Publishers, 2005 ((ISBN|1579124852)). |
| 16:53, 16 September 2019 | American Morse Code - letters.svg (file) |  |
72 KB | ((Information |Description=American Morse code, letters only |Source=Self created using Inkscape |Date=16th September 2019 |Author=~~~ |other_versions= )) == Licensing == ((cc-by-sa-3.0|Courtesy [http://en.wikipedia.org/wiki/User:Spinningspark Spinningspark at Wikipedia])) ((KeepLocal)) |
| 17:25, 13 September 2019 | C&W1 code.svg (file) |  |
44 KB | ((Information |Description=Cooke and Wheatstone 1-needle code |Source=Self created using Inkscape |Date=15th September 2019 |Author=~~~ |other_versions= )) == Licensing == ((cc-by-sa-3.0|Courtesy [http://en.wikipedia.org/wiki/User:Spinningspark Spinningspark at Wikipedia])) ((KeepLocal)) |
| 16:26, 9 August 2019 | Lumped-distributed comparison.png (file) |  |
7.93 MB | ((Information |Description=Comparison of lumped- and distributed element low-pass filter |Source=Derivative work of File:Crumar Bit 99 black - inside CEM 3328 (4 Pole Low-Pass VCF) (2010-06-22 15.07.45 by deepsonic).jpg and File:Microstrip Distributed Element Filter Technology.jpg |Date=9th August 2019 |Author=[https://www.flickr.com/people/73143485@N02 deepsonic] from Switzerland (1st image), Binarysequence (2nd image), ~~~ (derivative work) )) == Licensing... |
| 14:36, 8 August 2019 | Hilbert resonator.svg (file) |  |
7 KB | ((Information |Description=Three iteration Hilbert curve resonator in microstrip |Source=Self created using Inkscape |Date=8th August 2019 |Author=~~~ |other_versions= )) == Licensing == ((cc-by-sa-3.0|Courtesy [http://en.wikipedia.org/wiki/User:Spinningspark Spinningspark at Wikipedia])) ((KeepLocal)) |
| 23:12, 27 March 2019 | Cauer II example.svg (file) |  |
15 KB | Fix minor misalignment of annotation |
| 15:57, 24 March 2019 | Foster II example.svg (file) |  |
18 KB | ((Information |Description=Example of a Foster II form synthesis to go with the Network synthesis article |Source=Self created using Inkscape |Date=24th March 2019 |Author=~~~ |other_versions= )) == Licensing == ((cc-by-sa-3.0|Courtesy [http://en.wikipedia.org/wiki/User:Spinningspark Spinningspark at Wikipedia])) ((KeepLocal)) |
| 15:56, 24 March 2019 | Foster I example.svg (file) |  |
18 KB | ((Information |Description=Example of a Foster I form synthesis to go with the Network synthesis article |Source=Self created using Inkscape |Date=24th March 2019 |Author=~~~ |other_versions= )) == Licensing == ((cc-by-sa-3.0|Courtesy [http://en.wikipedia.org/wiki/User:Spinningspark Spinningspark at Wikipedia])) ((KeepLocal)) |
| 11:29, 7 February 2019 | Monarch (1).png (file) | .png) |
357 KB | ((Information |Description=Cable ship ''Monarch'' (1) |Source=K. R. Haigh, ''Cableships and Submarine Cables'', Adlard Coles Ltd., 1968 |Date= 1853 to 1883 |Author=unknown artist, credited to Postmaster General of the United Kingdom |other_versions= )) == Licensing == ((PD-UKGov)) ((KeepLocal)) |
| 15:49, 4 February 2019 | Myer wigwag signals.png (file) |  |
462 KB | ((Information |Description=Wigwag signals as originally defined by Albert J. Myer |Source=Myer, A.J., ''A Manual of Signals'' |Date=published 1866 |Author=unknown graphic artist |other_versions= )) == Licensing == ((PD-old-70)) ((KeepLocal)) |
| 21:09, 26 January 2019 | Foster magneto-electric telegraph.png (file) |  |
411 KB | ((Information |Description=Plan view of Henley and Foster magneto-electric telegraph |Source=''Nature'', [https://books.google.co.uk/books?id=c7sQ_ywxHsUC&pg=PA112 p. 112], 10 June 1875 |Date=published 1875 |Author=unknown |other_versions= )) == Licensing == ((PD-old-70)) ((KeepLocal)) |
_(2010-06-22_15.07.45_by_deepsonic).jpg){kind=link}
