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Dumont RA-109-A3
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12-12-2017, 09:29 AM
bandersen
RCA 741PCS
Join Date: Mar 2009
Location: Chicago, IL
Posts: 8,109
Ferro-resonant power transformers do tend to run hotter and noisier, but it does sound like yours isn't working right. That cap forms a resonant tank circuit and is critical to the proper operation of the transformer.
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