Michiel 2005's photos with the keyword: radiolamp

Wireless Weekly from August 25, 1933 – Osram valves

Wireless Weekly from August 25, 1933 – Osram valve…

Michiel 2005
28 Sep 2011 210
Radio tube

Radio tube

Michiel 2005
14 Jun 2010 195
Radio tube
Radio tube of the Marconi company

Radio tube of the Marconi company

Michiel 2005
14 Jun 2010 224
Radio tube of the Marconi company
Radio tube of the Marconi company

Radio tube of the Marconi company

Michiel 2005
14 Jun 2010 231
Radio tube of the Marconi company
Three electrodes lamp

Three electrodes lamp

Michiel 2005
30 Apr 2009 147
From the book Radio voor amateurs of 1926. Originally an English book by Michael Egan, translated/reworked into Dutch by ir. W. Harmsen.