Yup... I _love_ that old stuff!
It was fun to work with that huge fan unit at school (we used it to perform air flow measurings with a damper)!
Firing up that beast... go to Y. Needle hits end of scale, belts start screeching and sloooowly the motor starts turning... when it's up to speed, whack the swwitch to Delta and it's running (something like 25 seconds)... the control box was a good 40-50 years old with pretty crappy meters... the volt meter kept telling me it only saw 355 or 360V line to line... in reality it was 380 (still low).
