Quote:
Originally Posted by Electronic M
The point I was making is that if that history classroom has lower line voltage you get less sweep width/height, and if it has more you get more.
You can see this effect in action if a large appliance on the same circuit like a fridge or central A/C kicks on or off while you are watching the set...You will actually see the image grow or shrink and brightness change in step with it.
There is an industrial park roughly a mile away from me and I presume they have a device that can dip the grid a few volts and back a couple time a second continuously (since a while back that was a regular occurrence)...Once is interesting, but continuously can become annoying real quick.  |
There was probably other problems on the line.
Industrial complexes of any size, generally have their own feeders, directly from the large substation and are usually independant of residential and small commercial.