I seem to have invented perpetual motion!

The 8V wallwart (rated at 230 milliamp) showed about 0.5V off load. I cut its plug of and tried again on the bare wires. 15V!

I thought, what the heck, itll probably drop when its on load.

Turned the turntable on, and it span at what looked to be about 33 1/3.

Checked the V on load 19!

Switched off quick, and will wire the 12V beast back in tomorrow.

Ta muchly for all the advice.

Best regards

Chris