iordan Posted November 9, 2008 Share Posted November 9, 2008 caut un echivalent pt. tranzistorul MBD508 este un prefinal dintr-un amplificator Quote Link to comment Share on other sites More sharing options...
zal Posted November 9, 2008 Share Posted November 9, 2008 Probabil e vorba de BD508, care fiind facut de Motorola, mai are un ''M'' in fata codului.Merge orice BD de 2A si minim 40V. Acuma depinde si de tensiunea de alimentare a amplificatorului. Quote Link to comment Share on other sites More sharing options...
George(sb) Posted November 10, 2008 Share Posted November 10, 2008 am si eu de inlocuit niste tiristori bidirectionali http://www.datasheetarchive.com/search. ... efault&p=1 , credeti ca as putea sa ii obtin din 2 tiristori? Quote Link to comment Share on other sites More sharing options...
zal Posted November 10, 2008 Share Posted November 10, 2008 Pai sint triace rapide obisnuite, au o gramada de echivalenti. Numai tensiunea si amperajul sa corespunda. Quote Link to comment Share on other sites More sharing options...
George(sb) Posted November 10, 2008 Share Posted November 10, 2008 da-mi te rog daca ai idee de un echivalent usor de gasit, e dintr-un amplificator nu lucreaza mai mult de 150vL.E. am luat bt137, e bun?mai am o problema, ce pot pune in loc de lm234?; a nu se confunda cu lm324 Quote Link to comment Share on other sites More sharing options...
zal Posted November 11, 2008 Share Posted November 11, 2008 Pare in regula BT137... eventual unul mai puternic. Quote Link to comment Share on other sites More sharing options...
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