Failed toroidal transformer

[Jonathan]

Agreed on the point made in the last post - I'd disconnect both secondary windings and switch it on. If the fuse doesn't blow, then measure the voltage on each secondary. If that's fine and there's no connection between any of the windings (i.e. the insulation resistance is still good), then I'd suspect the load to be the problem...

Try this cheaper than Airlink.

http://uk.farnell.com/multicomp/vtx-...25v/dp/1675093

Amusingly, if you subtract the ~18% discount Farnell give to students and academics, you arrive at within £1 of the price Rapid sells those transformers for. Says something about Farnell's pricing strategy...