[Ron Ramirez]

The inner bobbin is either 38 or 40 gauge; the others are likely 32 or 34 gauge. If you have 30 gauge and would like to rewind the 0.7 ohm section, go for it. It's worth a try and will probably work anyway. The older Phico coils such as there are not as finicky about exact wire size as are the later Philco coils (1937 and later models).

Oh, and I don't know what the original inductance was.