Just for fun I looked up the RCA part number for the 630's 1st video IF coil and crossed it to a Meissner 17-1001. One of which is listed on ebay. Electrical specs look like a match. I'm not sure about the mounting, but there's a good chance it'll fit? Maybe you can message the seller and he'd be kind enough to measure the mounting bolt spacing. I agree your old one may work, but having this as a backup may let you sleep better at night.
https://www.ebay.com/itm/Meissner-17...5/291470458045
https://i.ebayimg.com/images/g/3e8AA...a3/s-l1600.jpg
https://live.staticflickr.com/65535/...a1bcddbf_b.jpg