[Arran]

The resistances in the Candohm equals 185 Ohms total, the 53 ohm section is in parallel with a pilot lamp, at least on the code 121 version, and all the tubes have 150 ma filaments, so the drop across that resistor is 27.75 volts. The drop across the tube filaments is 95.2 volts, so 95.2+ 27.75= 122.95 volts. There are two things that you can do, first contact the power company and tell them that the line voltage is too high, your house should share a transformer with three or four others and it should be putting out 120 volts + or - 2 volts. The other option would be to add more resistance to make up for the extra two volts, so substitute the 132 ohm section for a 146 ohm resistor, or as close to it as possible so probably a 150 ohm unit, make sure you use something like a 10 Watt or higher if it will fit. I would not use a 50A5 in place of the 35A5, then you would end up with too much of a voltage drop, 15 volts more when you only need 2 volts more, if the dropping resistor stays in place.
Regards
Arran