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Question about HV transformer


GGLL
 

GA, I took out the HV transformer (from an old commercial PA, burnt
beyond practical repair, which I guess was for twin triodes 3-400z
style, at least based in the sockets used and the filament transformer
which is a 10 VAC CT, 15A one).

This HV transformer has two primaries (115 VAC each, 50-60 Hz), and one
secondary which states 1200 VAC, 0.3 A DC Doubler

How should I estimate the transformer ratings, in terms of power
capabilities?, I don't understand the meaning of that stated current value.

TIA

Regards
Guillermo - LU5WE.

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