I can swap the mixer/osc tube from my other CTC-11. Not sure if I have any more of that type.
The diagram shows the mixer plate coil accessible from the top . . . .
Speaking of hands, by coincidence I recently got an email from the previous owner, who ran across my article that mentions solving an audio problem. This is two or three years after I last heard from him. He remarked, "Oh, I forgot to tell you, I had to wedge a matchbook under the base of the 6EW6 tube to get any sound."
Phil
