My "new" 1954 CTC2B 21CT55 21" roundie

[old_coot88]

Originally Posted by miniman82

But let's not forget: his line voltages are in the 125 range, and when you combine that with the 20 or more extra volts the silicon is likely to add it can get too high fast. I personally don't like risking unobtainium like CTC-2B flybacks, so I do what I can to keep things in check.

Indeed! And remember, wattage (and heat) don't increase linearly with voltage, but by the square of volts times amps.
That's why the earlier suggestion of using the 6.3 VAC heater supply as 'standard marker' when line voltage supply is over spec.

[ohohyodafarted]

Originally Posted by old_coot88

Indeed! And remember, wattage (and heat) don't increase linearly with voltage, but by the square of volts times amps.

I think you mean
P= I * E
or P= (I squared) * R
or P = (E squared) / R

[DaveWM]

Pie R round Cornbread R square.