[Mountainfire]

...I split this into its own thread.

Hello, Mountainfire (Roger). I can tell you that the model 60 used this same cabinet (among many others; if you want to learn more about the 60, see http://www.philcoradio.com/tech/60evol.htm).

So..if you would prefer an AC-operated chassis inside your 38B cabinet, then look for a model 60 chassis. They are not hard to find. And if you want to keep it original, Model 38 chassis are not hard to find, either. You already have the Model 38 speaker so you're ahead there if you do decide to keep it original. Be advised, though, that if you decide to put a model 60 chassis inside that you will also need a Philco S-7 electrodynamic speaker (the type of speaker used with Model 60). Also not terribly hard to find.

Good luck!

Thanks Ron, I appreciate your help.