2x55V Torroid Transformer

[John S]

Wind about 40 extra turns round it and connect to the original windings.
Measure and you will get either 50V or 60 v if 60v reverse the windings so it reads 50 then it's good for Gecko's [ hawk spit - ding ] or the 888 drivers from leadshine.

[Jonathan]

You can wind some turns on the core then connect them in series with the windings. If you connect them the right way (out of phase) the voltages will subtract and you can end up with the lower voltage required.

Edit: Oops, didn't notice John S beat me to it with this suggestion...

[John S]

Edit: Oops, didn't notice John S beat me to it with this suggestion...

I always do

[m_c]

I would of done, but I no longer have any suitable gecko drives, so this is surplus to requirements.