Transformer replacement wiring question

[Crambone]

Hello all, I’m installing a new transformer and when looking at the Hammond Data sheet compared to the original schematic how would I cross reference the wiring color from old to new? They show a black dot on the original transformer schematic on the center tap but on he Hammond data sheet the black dots aren’t on the center tap?

[bob91343]

 Just overlay the Hammond unit on the original.  The connections are shown in the correct positions.

[Crambone]

Thanks Bob that’s what I assumed as a center tap is a center tap per the drawings.

Andrew

[Ian.M]

I agree with Bob.

Thanks Bob that’s what I assumed as a center tap is a center tap per the drawings.

Err. *NO* its not a center tap on either the original or replacement diagram, because it isn't at the center of the winding with equal turns count either side of it.   Its a 'boost' tap that increases the secondary voltage when the switch is in SSB mode by removing a small part of each primary winding from the circuit, increasing the turns ratio.