[Dave Slusarczyk]

I recently purchased what was believed to be a Philco model 640B tombstone.  I do not have possession of it as of yet.  It has the strange "flat" band selector knob that appears to be on the model 640 sets.  However, it has an 8 tube chassis with what appears to be a driver stage tube.  Chassis looks to be a model 650.  I should have set later this week.  It may be a 650 that someone placed the wrong knob on??

 Did Philco place an 8 tube chassis is some of there model 640 sets?  


Thank you for any clarification you can offer.

Dave