UX220 (UX220)

Jacob Roschy Martin Renz Ernst Erb Bernhard Nagel Eilert Menke 
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Forum » Valves / tubes - Semiconductors » VALVES/TUBES / SEMICONDUCTORS in RADIOMUSEUM » UX220 (UX220)
Douglas Ready
USA  Articles: 5
Schem.: 0
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28.Jun.15 04:53

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I believe that the correct number for this tube is


It is identcal, except for the marking on the plastic base, to the Cunningham


As far as I know, there was never a model UX220 (UX-220).