17C9 tube in a Philco??

[Hemingray]

Has Philco ever used a 17C9 in their radios? I have one (will take pics later) that came with one. However, the tube layout on the bottom has no 17C9 mentioned, However, it mentions a 12DT8 which I do not seem to have in this set. It is a tabletop AM/FM clock radio. The clock works, and only AM works. FM is dead silent, perhaps this 17C9 is the wrong tube for this radio? It's sitting where the tube chart has the 12DT8.

Also, anyone have an extra radio cord? this one was damaged at the back and let go in a spectacular way on me.

Forgot to mention: The 17C9 is made by GE.