[morzh]

Thanks Terry.

The smallest my RS has is 30 gauge. Resistance is something like 100 ohm/ft vs 650 ohm/ft for 38. that might be stretching it a little, not sure. Everything I have found so far online, is like 1400 ft spools. Hate to buy that when I need less than 2' of wire. I'm also looking through some junk equipment for something like .004/.005/.006 diameter mag wire.

I'll continue looking.

-Brett

Brett

(I am speaking as an EE, not as an experienced vintage radio repairman, so)

What's important here is not really the gage, but the diameter and the number of turns.
The inductance of the choke, when the winding diameter is much larger than the diameter (gauge) of the wire itself, is determined by the winding geometry.

And, considering that the current-bearing capability in this type coils is not very important (inlike in, say, power chokes or transformers), you have some freedom in choosing the wire gauge. Anything reasonably close to what you have (so it winds easily, and is not too flimsy, so you can solder it well) will probably do.