I have the 6672N transformer. I can only find the 6672 diagrams on the schematic for the model 15. I can't find a diagram for the 6672N-it doesn't quite jive with the layout of the 6672N and I would like to power it up for testing. Can someone point me in the direction of the wiring diagram for my 6672N? Or are they the same? Thanks.[
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Hi Wilbur,
6672-N is the same as part no. 6672. The letter suffix indicated the actual manufacturer of the transformer or choke. "J" stood for Jefferson Transformer Corp. I do not know what "N" stood for.
Here is a drawing of the transformer connections:
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Notice the wire which is identified as terminal 4. Notice also in your photo how that wire connects to terminal 9 which is correct.
From the model 15 service data, a chart identifying the terminals:
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I hope this helps.
Ron
Ron, yes, thank you. I just variac tested my transformer and all the windings check out OK.