[EdHolland]

When I rewound my interstage and O/P transformers for the 16X, the resistance was quite close to the values provided on the schematic. Original values, I can't say because they were open circuit. I did notice that the finished numbers were low, and this was measuring in a cold garage where I did the work. The value changed noticably when it was warmer, certainly a several ohms or more increase on ~370 Ohms. There was also a slight difference between the inner and outer portions of the center tapped winds, as the outside section is a little longer. More modern transformers use bifilar winds to maintain a better balance (and for other reasons).

The effect on sound of layer vs. bulk wind? That would depend on the frequency response of the rest of the system, and the effect the added capacitance would have in combination with other circuit values. Also, bulk winds, unless kept really neat (which is hard to do with fine wire) tend to build up more than expected. I could speculate that the layer method was used as much to aid manufacture as it was for performance.

Hope I'm not explaining the obvious to you good people

Ed