[markmokris]

I discovered something significant. When I connect my 3 ft scope probe to pin 4, the cathode, of the 36 tube, the radio works really well. I can pick up stations across the entire band.

The scope probe is even disconnected from the scope. Electrically there is no connection on the other end.

I replaced the scope probe with 4ft of 2-conductor speaker wire laying on the floor (conductors connected together), and that also makes the radio work great. Same effect.

I sense that I am adding some "gimmick capacitance". What do I need to do to install this inside the set? Or any other suggestions?

Mark