The anode of the Siemens Da tube consists of two separate plates, so the filament is visible from the side. pic.twitter.com/w9o12gkDFY — Bernard Žvokelj (@Berny2876) August 9, 2018
The anode of the Siemens Da tube consists of two separate plates, so the filament is visible from the side. pic.twitter.com/w9o12gkDFY
