![](http://www.alamy.com/thumbs/6/3B7E5CCA-7CE7-4504-9297-8961FD217059/ED4AW9.jpg)
P-12-50 air surveillance transmitters in Yleisradio's workshop's laboratory, ca. 1940.
Size: 4700px × 4939px
Photo credit: © ART Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: -12-50, 1940., air, archives, arkisto, broadcasting, ca., company, finland, finnish, ilmansuojelulähettimet, laboratory, radio, radiotekniikka, sota, surveillance, surveillence, technology, transmitter, transmitters, työpaja, viestintätekniikka, war, workshop, yle, yleisradi, yleisradio, yleisradion, yleisradiotoiminta