{"title":"Energy levels in helium using op amps, VELA and BBC Micro—the evolution of a system","authors":"G. P. Dance, K. Winn","doi":"10.1049/ESN.1989.0039","DOIUrl":null,"url":null,"abstract":"The original idea of producing a current/voltage graph on a CRO for the Teltron tube using VELA and an op. amp. was devised and reported by the first author in a VELA User Group Newsletter. The second author inspired by that report went on to devise a method in which the voltage was plotted in real time in proper units using VELA and a BBC micro. This article shows how the various ‘blocks’ solved different problems, while tracing the development of the circuitry towards the final system.","PeriodicalId":281111,"journal":{"name":"Electronic Systems News","volume":"20 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1989-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Electronic Systems News","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1049/ESN.1989.0039","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
The original idea of producing a current/voltage graph on a CRO for the Teltron tube using VELA and an op. amp. was devised and reported by the first author in a VELA User Group Newsletter. The second author inspired by that report went on to devise a method in which the voltage was plotted in real time in proper units using VELA and a BBC micro. This article shows how the various ‘blocks’ solved different problems, while tracing the development of the circuitry towards the final system.
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