File:VU meters on Avalon Design (AES 124).jpg - Wikimedia Commons
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File:API 1608 Recording Console - logo & VU meters on bridge (photo by Q).jpg - Wikipedia
File:VU meter & Peak lamp, TL Audio VTC, Metway Studios.jpg - Wikimedia Commons
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File:Philips N4422 - Stereo VU meter-1841.jpg - Wikimedia Commons
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VU meter - Wikipedia
File:Grundig TK121 - VU meter-1306.jpg - Wikimedia Commons
File:VU-meter-response.svg - Wikimedia Commons
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File:Meterbridge VU meter.png - Wikimedia Commons
could I make my own VU/PPM meter? - Gearspace.com
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File:VU-meter-step-response.svg - Wikimedia Commons
VU meter - Wikipedia
