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NE N1150-AL Schematic
The schematic is for a Northern Electric "N1150-AL".     The vast majority
of Northern desk stands equipped for automatic dial service, most notably,
the "N1050-AL", left the factory with the Northern "N" series dials, and
used a 3 conductor mounting cord for side tone circuits.

The N1150-AL schematic shows the set equipped with a Western designed, and I
would assume, a Northern made,  type 4H dial, and with a 4 conductor
mounting cord for anti side tone service.

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