Toroid transformer no ouput

[Clive S]

Hello :) I thought I'd stop bothering Jazz privately and ask for the communities help as well, so that other may benefit from this :)

I built my linear power supply today. When powering it, the only thing I heard was th transformer loading for two seconds, then a tiny "click", and I measured the output current of the PSU: nothing.. No fumes, no explosion, no bad smell, no heat, nothing was heard other than than a very little teeny tiny two second load, then click.

So I unpluged wires, and checked each step separately. Turns out the transformer does not output current, even though it has proper 230V input current (checked). I tried with outputs wired in series or in parallel. Nothing comes out.

Does anyone have an idea ?

Thank you in advance !

Best wishes.

How did you measure the o/p current? have you checked the continuity of the o/p coils with an ohm meter.
How have you wired it exactly. Has it got two sets of input coils? A picture would be good