Image:Valve.radio.arp.600pix.jpg
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A two-valve home-made radio from 1958. The leads connect to the low-voltage filament battery and the high-voltage anode battery.
Taken by Adrian Pingstone in 1958 and released to the public domain.
This image has been (or is hereby) released into the public domain by its creator, Arpingstone. This applies worldwide.
In case this is not legally possible,
the creator grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.
Subject to disclaimers.
File history
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- (del) (cur) 10:14, 12 November 2004 . . Arpingstone (Talk | contribs) . . 600×700 (113,622 bytes) (Valve radio reupload, better quality)
- (del) (rev) 21:03, 24 March 2004 . . Arpingstone (Talk | contribs) . . 600×700 (85,985 bytes) (Reupload of valved radio)
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