[kntnetworks@gmail.com]

Thanks for the great responses and taking the time to research.  

Here's an image of the cabinet front: 
   
Given the cabinet I'm thinking it's a 66S.  I know L=Lowboy, F=Floor model but in not sure what the S represents. 

Thanks for the schematics those are greatly appreciated and will come in very handy.  

Here's a video of a 37-61F I restored a while ago:
[Video: https://youtu.be/IxdhvBji0eg?si=GxrnQN-AE323bwG9]

It was a gift from my son that he dug out of an old girlfriend's attic.  It was terribly molested both electrically and in appearance but after a lot of learning and time I think it doesn't look terrible and it receives like a champ.  

Notice the grill and the dial escutcheon on the '37 console.  I haven't found many images of this combination (typically it's the black escutcheon with this grill).  I wonder if that chassis was a swap.

Anyway, for the 66S I'll take a look for restoration videos of this chassis from other cabinets.  If you all have any advice or tips on approaching this one I'd be happy to have the help.  

Thanks again!