[Cathode Ray]

Thanks Chris and Mark,
I'm happier now that I've managed to run it up and make some measurements.
I was fearful it would cause mains trips, but none so far.
The variac also makes a slight hum, but not as loud as the isolation trafo.
I won't bother with PFC, it's fine for the odd chassis test, that's all it's for.

Chris, you points about my unloaded measurements are well made.
I'll just accept that it's not super efficient, but still gets the job done.

Photo of my efforts below , it won't win any prizes but it works.

Cheers

Ray