[R-390] Schematic Discrepancy..

[Optonline]

Hi All!

A quick question for the experts...
While plowing thorugh the re-cap'ing of my IF section module, I have come upon a curious schematic discrepancy..

My '55 Collins-built  IF module has a .1uF cap stuffed in the C533 location, with a connection between pin 3 of V505 and chassis ground.

The Navships manual I own indicates C533 should be a .033uF cap between pin 6 of V505 and ground, and no cap between pin 3 and ground. I'm certain this is due to the many design changes over the years.. 

Which is correct?
Does anyone know where I could find the propper vintage schematics?

Stev Uckerman, N2JXL