Hope u have plenty of spare tubes...
115 / 6.3 = 18.25 turns ratio
125 / 6.3 = 19.84 turns ratio
115 = 6.3 Fil
125 = 6.84 fil
Face it man, Even if u have a Sh*t Load of spares
your BA is on "Borrowed time".
/Dan
Beautiful cool weather and plenty of voltage! Nice!