Thanks. The scope is an old RCA WO-33A. It was a TV repairmans scope in the mid to late fifties. It was actually givin to me about 35 years ago by an ex gf'f father. The scope is all tube, still running on the original caps. I use it as a modulation monitor.Cool stuff, helps put out a few extra BTU's in the winter. LOL

Oh under the scope is a Freq. counter, it is an old Fluke. Thanks