My audio equipment burnt its transformer. .........
Basically you may have to study the other circuitry and the audio eqpt specification from the user manual.
1. whether input is 230 or 110V-- depends on your location.
2. you have two options. a. get it wound as it is by a local winding shop/repairer.
b. do it yourself.
If option is (b) , you have to count the secondary and primary turns while ripping it and Try to duplicate.
If you know the seconday voltage, as per the electrolytics, i cold feel that secondary may be 15 to 18V or 20V at the wiorst.
But you can't take chances, lest you may end uploosing other parts.
By any means , it appears to judst duplicate it by careful reverse engineering.
Even if the primary is partly burnt, at one place the wires may be jammed, it is still possible to be able to count the turns while ripping.
FInally, if the make is known, transact with the manufacturer and seek a replacement transformer or the tranformewr data-
Some times if you have a service data you may know the unregulated dc a\oltage and even the secondary AC voltage. if so you could improvisea substitute for it.
All the best.