Now that I found the new forum, It did play quite well with my, new to me, Yamaha HP-1 headset. The bass was less than accurate because they are low impedance. But they are all I had on hand.
If some solder wicked down and into the 9 pin socket before replacing the transformer it was re-wetting some tube pins. But it worked before and after the Speedball upgrade, well two weeks after the Speedball upgrade. (My fault!)
So it seems that shipping is the problem. Two more trips won't make it better.
I would be happy, and eager, to talk with the tech when he goes to look at it. He's got my telephone number.