Hi Jake,
Looking through the 1964 Hoover parts catalogue, the 1224 has a TV choke listed as part no 619481, the 1334 suppressor is part no 618164, so it doesn't sound as if they would be compatible. I certainly wouldn't start stripping the 1224. If you are able to hold out until after Christmas, I have a 1334A base & motor which I was going to scrap as the housing is cracked and the motor bearings need replacing, I will see if I can get the suppressor out of it as a donor to your machine.
