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Title: electronic valve [Go to resource]
Description: A medium sized electronic valve with stout cylindrical glass casing, metal base and 4 pins. Part of a massive collection of valves in a cardboard box. License: http://www.abdn.ac.uk/historic/Copyright_terms_conditions.shtml Publisher: ABDNP University of Aberdeen, Natural Philosophy Collection of Historical Scientific Instruments Rights holder: 47718 Temporal: 1800 Source: University of Aberdeen Creator: AEG Identifier: http://calms.abdn.ac.uk/Geology/dserve.e... Go to resource More Like this...
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