I'm using these on a SPP. They're out of a Sansui 1000 (25E5). The schematic shows the primaries with a center tap. The thing that's confusing me is the primary windings. One transformer has 3 leads (black, orange, brown) and I measure 60 ohms across orange, brown...and 60 ohms across orange black. 120 ohms across brown and black. So the orange must be the center tap, right? Now the other transformer has 4 primary leads (doesn't show this on the schematic, though) black, red, orange and brown. I get 60 ohms across red and black...and 60 ohms across brown and orange. If I measure from brown to black AND connect red and orange together, I get 120 ohms. Is this the correct way to wire this primary side. The schematic shows both op with only 3 wires on the primary side? Thanks for helping a novice out. The output side has 8,16 and 32 ohms, so I'm figuring on using only the 8 ohm.
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