[MrFixr55]

There are 2 antenna terminals and one ground terminal. Make sure that you are using the "red" terminal. Note that the "black" terminal goes to ground for some strange reason. Maybe the diagram is misdrawn. However, even if misdrawn, in broadcast band, the black lead is grounded. Ohm between the red terminal and ground. You should have continuity. Resistance is less than one Ohm.

Try using an external ground, preferably a water pipe ground. When hooking up to the antenna side of the coil as opposed to the tube grid / cap stator side of the coil, a complete circuit is required to cause the "transformer action" needed to cause the signal to pass through the secondary.