Has anyone successfully built the THEREMIN following the Ernest J. Schultz valve circuit Oct 1949 ? 1949

Having checked and re-checked the circuit I am still having difficulty in getting the oscillators to work. Has anyone successfully built this circuit? Are there any errors in the circuit diagram?
I would be grateful for any comment or information you can offer.

I have been considering building this theremin. Off hand, I would get somebody else to check the wiring against the schematic. Can you post a picture of the chassis underside?

Mark