Sometimes a regenerative set won't like a long antenna connected directly: the capacitance of the antenna can keep the set from regenerating. If that happens, you can just twist two pieces of insulated wire together as a gimmick capacitor and use that to couple to the set. Have you operated regen sets before? The set was designed to use a 2000 ohm traditional headset. The regen control is advanced slowly until a rushing noise is heard and then backed off just until the rushing stops. That is the most sensitive point. It will be very sensitive but very touchy. As you tune, this point will change also and you'll have to readjust the regen control up or down to maintain sensitivity. Try the set after 8:00 PM. I have used regens that can pick up stations all over the eastern half of the country after dark. This set did not like my outdoor antenna but picked up all these stations with about 20 feet of wire strung in the rafters of the garage.
This shows the idea of a gimmick cap. One wire would connect to the antenna, the other to the set. Does not have to be tightly twisted as shown. Can be loosely done, adjust number of twists to suit operation.
http://213.114.137.49/begin/gimmik-0.htm