Need Audio Output Transformer for a SX62A

SPEAKER CONNECTION - A four-terminal strip, marked "COM-3.2-8.0-500" is provided at the rear of the receiver for speaker connections. Any speaker having an impedance of 3.2 or 8 ohms can be used with the receiver by
connecting one lead from the speaker to the common ground terminal marked "COM" and the other lead to the terminal
which corresponds to the speaker impedance. When using a speaker with an impedance other than 3.2 or 8 ohms, a
matching transformer should be used to insure optimum performance. The matching transformer should have a 10-
watt power rating, a 500-ohm primary impedance, and a secondary impedance to match the impedance of the speaker
being used. The transformer should be mounted on or near the speaker. Connect the primary of transformer to the
terminals marked "500" and "COM" and the secondary to the speaker voice coil. The Hallicrafters R-46 and R-46A
speakers are both designed for use with your receiver. The R-46 speaker connects to the terminals marked "500"
and "COM"; the R-46A speaker connects to the terminals marked "3.2" and "G".
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the primary transformer winding is center tapped and connect to push-pull set of 6v6 tubes

Go here and follow the instruction:

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There are many vendors and makers of transformers. Here is one popular vendor or Hammond:

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Can't fine the specifications for it.  It is a Hallicrafters audio transformer [You must be registered and logged in to see this link.]