Note that the transformer can be operated at a higher volt-amp rating when using the full wave bridge. This has to do with factors such as core size/construction and wire gauge. The specific numbers shown above are not universal, however. In the absence of such data, the manufacturer's rating for the full wave CT configuration (usually how the ratings are derived) should be used for both configurations. This means that doubling the voltage output by changing from the CT to the bridge requires limiting the transformer secondary to half the current. That maintains the same volt-amp rating.
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