If someone out there has a Hallicrafters HV coil they would be willing to donate, I could take a look at it and see if my machine ca rewind it. I would have to unwind the coil to tet the turns counts for the windings. If the pi sections of the HV secondary are too thin, I might not be able to reproduce it. But I need a sample to play with to know.
Give me a PM or email
jfrosomjr@crl.rr.com if you have a donor coil.