[rfeenstra]

Not sure of the resistance since the secondary was open.  If the other TR is the same, the secondary resistance is 8K ohms.  My rewound secondary measures 8.8K ohms.  Micrometer measurements of the wire led me to 40 guage, though it was not exact by the charts.  Actual measurement was considerably less than 39 guage, but a few .0001's more than 40 guage.  Not at all sure of the thickness of the insulation layer.  I assume manufacturing tolerances, especially in 1927, would account for the difference in resistance.

The question I pose to you is (cuz I don't know the answer!) does bulk winding produce the same results as the layer method?  I would assume it does.  However, your bobbin diameter would be less.  Again, I doubt that makes a difference, but I don't know.  But then, given the age and lack of precision in designs of these early radios, I doubt it would be audible.

One more question, a repeat question, what effect does several shorted windings have on the performance of the TR?  it seems that it would affect the impedance dramatically.  How much more effect would shorted windings have over the effect of the copper strap around the circumfrance of the finished coil (as shown in the pics)?   Questions that are beyond my knowledge base!  I haven't googled it yet but maybe there are answers aout there.

Rob