[Arran]

I wonder if the Brand Z set was an export model? Does it use a ballast or have a dropping resistor with line voltage taps? It seems that the Z boys were reluctant to part with the big black dials as late as the 1942 model year, they just squared it off to make it look more modern.
With regard to the Hallicrafters TV I hope the picture tube and flyback are good, althought the picture tube is likely a 10BP4, a 10AP4, or something similar. I don't think it would use an electrostatic tube.
Regards
Arran