A high voltage <a href="https://en.wikipedia.org/wiki/Marx_generator" class="extiw" title="w:Marx generator">Marx generator</a> displayed at the Autumn Exhibition of State-Owned Electrical Engineering Enterprises (VEM) at Leipzig, East Germany, September 1954.  A Marx generator is an electrical device that produces a pulse of very high voltage, used for testing high voltage electric utility components.   At left the parts of the Marx generator are visible; a stack of high voltage capacitors <i>(black cylinders)</i> connected through spark gaps <i>(pairs of metal balls)</i>.  When the spark gaps fire, the ten charged capacitors are connected in series, generating a voltage pulse at the top terminal of ten times the capacitors' voltage.   The top output terminal of the generator is connected by a wire to some type of high voltage device being tested <i>(left)</i>
<a href="https://en.wikipedia.org/wiki/Roger_R%C3%B6ssing" class="extiw" title="w:Roger Rössing">Roger Rössing</a> and <a href="https://en.wikipedia.org/wiki/Renate_R%C3%B6ssing" class="extiw" title="w:Renate Rössing">Renate Rössing</a>
CC BY-SA 3.0 de
<ul><li>Derivative of <a href="//commons.wikimedia.org/wiki/File:Fotothek_df_roe-neg_0006746_012_Exponate_der_Vereinigung_Volkseigener_Betriebe_d.jpg" title="File:Fotothek df roe-neg 0006746 012 Exponate der Vereinigung Volkseigener Betriebe d.jpg">Fotothek df roe-neg 0006746 012 Exponate der Vereinigung Volkseigener Betriebe d.jpg</a></li>
<li>Original image:  <div class="vcard"></div></li></ul><table class="toccolours collapsible collapsed" cellpadding="2" cellspacing="0" dir="ltr" style="text-align:left; border-collapse:collapse; background:#f0f0ff; border:1px solid #aaa;" lang="en"><tbody><tr valign="top"><th colspan="4" style="background-color:#e0e0ee; font-weight:bold; border:1px solid #aaa;"><span class="fn" id="creator"><bdi><a href="https://en.wikipedia.org/wiki/en:Deutsche_Fotothek" class="extiw" title="w:en:Deutsche Fotothek"><span title="universal archive for art and cultural history of the Saxon State and University Library, Dresden, Germany">Deutsche Fotothek</span></a>
</bdi></span> <a href="//commons.wikimedia.org/wiki/Institution:Deutsche_Fotothek" title="Institution:Deutsche Fotothek"><img alt="Blue pencil.svg" src="https://upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/15px-Blue_pencil.svg.png" decoding="async" width="15" height="15" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/23px-Blue_pencil.svg.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/30px-Blue_pencil.svg.png 2x" data-file-width="600" data-file-height="600"></a> <a href="https://www.wikidata.org/wiki/Q655507" title="wikidata:Q655507"><img alt="wikidata:Q655507" src="https://upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Wikidata-logo.svg/20px-Wikidata-logo.svg.png" decoding="async" width="20" height="11" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Wikidata-logo.svg/30px-Wikidata-logo.svg.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Wikidata-logo.svg/40px-Wikidata-logo.svg.png 2x" data-file-width="1050" data-file-height="590"></a></th>
</tr><tr valign="top"><td rowspan="8" style="width:120px" id="fileinfotpl_creator_image"><span class="wpImageAnnotatorControl wpImageAnnotatorOff"><a href="//commons.wikimedia.org/wiki/File:Deutsche_Fotothek_Logo_2022.jpg" class="image"><img alt="Deutsche Fotothek" src="https://upload.wikimedia.org/wikipedia/commons/thumb/8/85/Deutsche_Fotothek_Logo_2022.jpg/200px-Deutsche_Fotothek_Logo_2022.jpg" decoding="async" width="200" height="47" class="photo" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/8/85/Deutsche_Fotothek_Logo_2022.jpg/300px-Deutsche_Fotothek_Logo_2022.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/8/85/Deutsche_Fotothek_Logo_2022.jpg/400px-Deutsche_Fotothek_Logo_2022.jpg 2x" data-file-width="2500" data-file-height="591"></a></span></td>
</tr><tr valign="top"><td style="background-color:#e0e0ee; font-weight:bold; border:1px solid #aaa;">Native name</td>
<td colspan="2" style="word-break:break-word;border:1px solid #aaa;">Deutsche Fotothek</td></tr><tr valign="top"><td style="background-color:#e0e0ee; font-weight:bold; border:1px solid #aaa;">Parent institution</td>
<td colspan="2" style="word-break:break-word;border:1px solid #aaa;"><a href="https://en.wikipedia.org/wiki/en:Saxon_State_and_University_Library_Dresden" class="extiw" title="w:en:Saxon State and University Library Dresden"><span title="combined state and university library in Dresden, Saxony, Germany">Saxon State and University Library, Dresden</span></a> <a href="https://www.wikidata.org/wiki/Q655507#P749" title="Edit this at Wikidata"><img alt="Edit this at Wikidata" src="https://upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/10px-OOjs_UI_icon_edit-ltr-progressive.svg.png" decoding="async" width="10" height="10" style="vertical-align: text-top" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/15px-OOjs_UI_icon_edit-ltr-progressive.svg.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/20px-OOjs_UI_icon_edit-ltr-progressive.svg.png 2x" data-file-width="20" data-file-height="20"></a></td></tr><tr valign="top"><td style="background-color:#e0e0ee; font-weight:bold; border:1px solid #aaa;">Location</td>
<td colspan="2" style="word-break:break-word;border:1px solid #aaa;"><div class="locality"><a href="https://en.wikipedia.org/wiki/Saxon_State_Library" class="extiw" title="en:Saxon State Library">Saxon State Library</a>, <a href="https://en.wikipedia.org/wiki/en:Dresden" class="extiw" title="w:en:Dresden"><span title="capital city of the Free State of Saxony in Germany">Dresden</span></a></div></td></tr><tr valign="top"><td style="background-color:#e0e0ee; font-weight:bold; border:1px solid #aaa;">Coordinates</td>
<td colspan="2" style="word-break:break-word;border:1px solid #aaa;">51° 01′ 40.12″ N, 13° 44′ 12.26″ E <span class="wpImageAnnotatorControl wpImageAnnotatorOff"><a href="//www.openstreetmap.org/index.html?mlat=51.02781&amp;mlon=13.73674&amp;zoom=17" title="Link to OpenStreetMap" rel="nofollow"><img alt="Link to OpenStreetMap" src="https://upload.wikimedia.org/wikipedia/commons/thumb/b/b0/Openstreetmap_logo.svg/20px-Openstreetmap_logo.svg.png" decoding="async" width="20" height="20" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/b/b0/Openstreetmap_logo.svg/30px-Openstreetmap_logo.svg.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/b/b0/Openstreetmap_logo.svg/40px-Openstreetmap_logo.svg.png 2x" data-file-width="256" data-file-height="256"></a></span> <span class="wpImageAnnotatorControl wpImageAnnotatorOff"><a href="//maps.google.com/maps?hl=en&amp;q=51.02781,13.73674&amp;tab=wl" title="Link to Google Maps" rel="nofollow"><img alt="Link to Google Maps" src="https://upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Google_Maps_icon_%282020%29.svg/20px-Google_Maps_icon_%282020%29.svg.png" decoding="async" width="20" height="29" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Google_Maps_icon_%282020%29.svg/30px-Google_Maps_icon_%282020%29.svg.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Google_Maps_icon_%282020%29.svg/40px-Google_Maps_icon_%282020%29.svg.png 2x" data-file-width="512" data-file-height="734"></a></span> <a href="https://www.wikidata.org/wiki/Q655507#P625" title="Edit this at Wikidata"><img alt="Edit this at Wikidata" src="https://upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/10px-OOjs_UI_icon_edit-ltr-progressive.svg.png" decoding="async" width="10" height="10" style="vertical-align: text-top" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/15px-OOjs_UI_icon_edit-ltr-progressive.svg.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/20px-OOjs_UI_icon_edit-ltr-progressive.svg.png 2x" data-file-width="20" data-file-height="20"></a></td></tr><tr valign="top"><td style="background-color:#e0e0ee; font-weight:bold; border:1px solid #aaa;">Established</td>
<td colspan="2" style="word-break:break-word;border:1px solid #aaa;">1924 <a href="https://www.wikidata.org/wiki/Q655507#P571" title="Edit this at Wikidata"><img alt="Edit this at Wikidata" src="https://upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/10px-OOjs_UI_icon_edit-ltr-progressive.svg.png" decoding="async" width="10" height="10" style="vertical-align: text-top" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/15px-OOjs_UI_icon_edit-ltr-progressive.svg.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/20px-OOjs_UI_icon_edit-ltr-progressive.svg.png 2x" data-file-width="20" data-file-height="20"></a></td></tr><tr valign="top"><td style="background-color:#e0e0ee; font-weight:bold; border:1px solid #aaa;">Website</td>
<td colspan="2" style="word-break:break-word;border:1px solid #aaa;"><a rel="nofollow" class="external text" href="http://www.deutschefotothek.de/db/apsisa.dll/ete">www.deutschefotothek.de</a></td></tr><tr valign="top"><td style="background-color:#e0e0ee; font-weight:bold; border:1px solid #aaa;">Authority file</td>
<td colspan="2" style="word-break:break-word;border:1px solid #aaa;"><div class="hlist">
<ul><li><a href="https://www.wikidata.org/wiki/Q655507" title="wikidata:Q655507"><img alt="wikidata:Q655507" src="https://upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Wikidata-logo.svg/20px-Wikidata-logo.svg.png" decoding="async" width="20" height="11" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Wikidata-logo.svg/30px-Wikidata-logo.svg.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Wikidata-logo.svg/40px-Wikidata-logo.svg.png 2x" data-file-width="1050" data-file-height="590"></a>: <a href="https://www.wikidata.org/wiki/Q655507" class="extiw" title="d:Q655507">Q655507</a></li>
<li><a href="https://en.wikipedia.org/wiki/en:Virtual_International_Authority_File" class="extiw" title="w:en:Virtual International Authority File">VIAF</a>: <span class="uid"><span class="plainlinks"><a rel="nofollow" class="external text" href="https://viaf.org/viaf/128500931/">128500931</a></span></span></li>
<li><a href="https://en.wikipedia.org/wiki/en:LCCN_(identifier)" class="extiw" title="w:en:LCCN (identifier)">LCCN</a>: <span class="uid"><span class="plainlinks"><a rel="nofollow" class="external text" href="https://id.loc.gov/authorities/n2011053635">n2011053635</a></span></span></li>
<li><a href="https://en.wikipedia.org/wiki/en:SUDOC_(identifier)" class="extiw" title="w:en:SUDOC (identifier)">SUDOC</a>: <span class="uid"><span class="plainlinks"><a rel="nofollow" class="external text" href="https://www.idref.fr/146249585">146249585</a></span></span></li>
<li><span class="uid"><a rel="nofollow" class="external text" href="//www.worldcat.org/identities/lccn-n2011053635">WorldCat</a></span></li></ul></div></td></tr></tbody></table><div style="display: none;">institution QS:P195,Q655507</div>