ˌeɪsˈiː slˈæʃ dˌiːsˈiː sˈɛts wɪðˌaʊt mˈeɪnz tɹænsfˈoːɹmɚ wʊd jˈuːz "jˈuː" tˈuːbz ʌvðə sˈeɪm tˈaɪps, ˈiː.dʒˈiː. ˈʌtʃ fˈoːɹɾi tˈuː plˈʌs ˈʌf fˈoːɹɾi wˈʌn plˈʌs ˈʌbk fˈoːɹɾi wˈʌn plˈʌs ˈʊl fˈoːɹɾi wˈʌn plˈʌs ˈaɪ fˈoːɹɾi wˈʌn ɹˈɛktɪfˌaɪɚ.
AC/DC sets without mains transformer would use "U" tubes of the same types, e.g. UCH42+UF41+UBC41+UL41+UY41 rectifier.