However this system was later abandoned in favor of rotary converter stations. This makes the rotary converter a hybrid dynamo and mechanical rectifier. Oerlikon exhauster and compressor, Arno rotary converter. The self-balancing dynamo is of similar construction to the single- and two-phase rotary converter. The rotary converter was invented by Charles S. Bradley in 1888. Like the CC 14100, the CC 14000 used a rotary converter. In that field, it is often named TBRC, or Top Blown Rotary Converter. Former machinery transmitters like the Alexanderson alternator were, strictly speaking, rotary converter plants. The rotary converter can directly convert, internally, any type of electric power into any other.