[codefox1]

Just an aside, it makes very little difference in most sets if the replacement transformer does not have a center tap for the 6.3 volt winding, just so long as one or the other returns to B- or ground. True mostly on larger amplifiers as well. There are several schemes use to fein a neutral ground to minimize hum including resistors and potentiometers wired from both poles of filament winding to "ground." Nine different ways of Sunday.