This list is not complete. I'm doing my best to try to list as many Webcor reel-to-reel machines as I can find. Info comes from several sources (see Notes below) which explains why I sometimes have data (like frequency response) and sometimes not.
I have noted examples where I actually own the machine. For some things like frequency response, having the unit doesn't tell me the info; for other things like the recording level indicator or the tube compliment, it works great.
Wire machines are listed in order they appear on Webcor's Technical Service Bulletin #37 (see Sources at bottom of pate). Tape machines are listed in numeric order by Model Number.
Webcor did not assign model numbers strictly in numerical order; they tended to be grouped, but they also followed some internal company logic that is now lost to us. The result is that the years of introduction are somewhat chronological but not strictly. Dash numbers typically indicate cabinet style, and letters typically refer to revisions.
Webcor liked to reuse its model names (Royal, Viscount, Coronet, etc.) even though the model numbers changed. Names begin appearing on tape recorders after the first generation or two. When looking at recorders with names, be sure to find out which model number it really is. e.g. the Royal could be a mono-only model, a high-fidelity mono, a mono with built-in AM radio, or a stereo-playback machine, but they're all called Royal and they're cosmetically very similar.
Models types are roughly:
Service manuals: Webcor-factory manuals are available but tend to be only found on eBay and are usually pricey. A few schematics are floating around—try a Google search. SAMS Photofacts are available on eBay or from Steve Johnson—prices vary; it pays to shop around.
Please note on the model numbers: With a few exceptions where the differences are available, I've removed the various prefixes (BP, EP, etc.) and suffixes (-1) because I believe they're more confusing than enlightening.