As Hero999 said, the physical size will give you an indication as well as the TX wire size.
See if you can get the data from the rectifier, the numbers you give us are manufacturers numbers.
A photo of the TX would be handy
Do an ohms test at the windings, generally very low ohms are the secondaries, Higher ohms are the primaries.
For testing from the mains put a 200 Watt lamp in series with the primary winding, it will limit the current when you connect it up wrong e.g. 110 volts winding on 230 Volts.
Cheers, Raymond