vacuum valve vacuum tube rectifier • vacuum ventilation · · · Info · Characters · · vacuum valve · · Text Common · · Latin · · Scripts 12 · · Length 4 · · Syllables Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 l latin small letter l U+006C m latin small letter m U+006D u latin small letter u U+0075 v latin small letter v U+0076