Michiel 2005's photos with the keyword: tube

Outside television

Radio tube

Radio tube of the Marconi company

14 Jun 2010 223
Radio tube of the Marconi company

Radio tube of the Marconi company

14 Jun 2010 229
Radio tube of the Marconi company

Three electrodes lamp

30 Apr 2009 145
From the book Radio voor amateurs of 1926. Originally an English book by Michael Egan, translated/reworked into Dutch by ir. W. Harmsen.

Holborn station – Train approaching

Keep left everywhere