[zboltman]

Philco Model 90
The drawing on the 3 tube shield shows a tube with a shield. (The DET-AMP 27 tube)
The chassis I have does not have a shield there, nor any indication there ever was one.
Do I need to obtain a shield and install one?
OK, was searching for a 2" x 4" shield and can't find one; If I need it, where might I get one???
See Pic

Part 2,
There is a vertical clip on the chassis between the tubes. 
Did this hold a shield for the DET-AMP 27 tube, or what was it for?
See Pic