16-04-2017, 08:13 AM
Going by the voltage adjustments on a wide range of radios and TVs, anywhere from 190V to 250V in the UK alone, depending on the whim of the local authority who usually provided the power pre-nationalisation. This was later standardised to a uniform 240V AC, of course.
Where I grew up in Grays, Essex, it was 230V AC from the time I was first able to take in such things.
In West Ham, where I went to secondary school from 1955 - 60 it was 215V AC. I remember all the pavements around the school being dug up to lay new cables for the move to 240V AC.
At the same time, Ilford was 200V DC as Ilford Town Council found this a convenient fit for its 600V DC traction power supply generation for the trams.
No doubt similar variations existed in other countries as electricity supply systems evolved and I guess all those 250V settings on UK sets must be a pointer to supplies slightly higher than 240V at sometime, somewhere in the UK.
Where I grew up in Grays, Essex, it was 230V AC from the time I was first able to take in such things.
In West Ham, where I went to secondary school from 1955 - 60 it was 215V AC. I remember all the pavements around the school being dug up to lay new cables for the move to 240V AC.
At the same time, Ilford was 200V DC as Ilford Town Council found this a convenient fit for its 600V DC traction power supply generation for the trams.
No doubt similar variations existed in other countries as electricity supply systems evolved and I guess all those 250V settings on UK sets must be a pointer to supplies slightly higher than 240V at sometime, somewhere in the UK.
