Hi Paul,
Good to hear from you.
I have updated the post with the dimensions but they are as follows;
Transformer diameter is 74mm.
The height of the transformer is 33.5mm.
The height of the solder pins is 4.5mm
Overall height is 38mm.
The PCB dimensions are 124mm x 75mm
When the transformer is soldered onto the PCB it allows the the solder pins to be trimmed by 1mm, bringing the overall height down to 37mm.
It has indeed two independent secondaries. It is not center tapped (though can be by linking the middle two pins).
Regards,
Cemal