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Title: Start Stop [Go to resource]
Description: modular valve unit (late 1950s?) Start Stop. Black aluminium case with rear connector and valves projecting and covered in screening cans. Racal Eng. Ltd. Type no. SS 12 A Ser N 71. 3 valves: 2 of 12AT7, 1 off ECC82 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: 1957-1962 Source: University of Aberdeen Creator: Racal Eng. Ltd. Identifier: http://calms.abdn.ac.uk/Geology/dserve.e... Go to resource More Like this...
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