File:Testing the amplifier.jpg

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English: All the parts of the system are now connected. The initial tests were done with the valves removed and a voltmeter used to check that the HT and LT voltages appeared on the right pins. Since they did, the valves could be safely fitted. The amplifier seems to work, touching the input connection with a screwdriver blade produces noise in the earphone. But the microphone doesn't do anything.
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Source https://www.flickr.com/photos/43851301@N02/15013889158/
Author tony_duell

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This file is licensed under the Creative Commons Attribution 2.0 Generic license.
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This image was originally posted to Flickr by tony_duell at https://flickr.com/photos/43851301@N02/15013889158 (archive). It was reviewed on 26 December 2019 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0.

26 December 2019

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current03:20, 26 December 2019Thumbnail for version as of 03:20, 26 December 20193,648 × 2,736 (4.2 MB)Ser Amantio di Nicolao (talk | contribs)User created page with UploadWizard

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