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It is a CTC-4 judging by cabinet name.
One hack way of dealing with open primaries of power transformers that I like is to take a similar sized xfmr and jumper it's heater winding (assuming both use the same heater voltage) to the heater winding of the one in the set.....If only the line winding is bad then the set will come to life with the "helper" transformer connected.
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