[Boatanchors] Help ID- ing components

[AWFremmer at aol.com]

Fellow Collectors Restorers,
 
Need your help determining the specifications of the following  items.  
Tried "Bunkerof Doom and was able to scope out some of what I was  looking for, 
but not these.  Could be my tired old eyes.
 
UTC PA-300
 
Thordarson T-19C39 - I found C38 but not this one
 
Finally, a modulation transformer, BX -17-37.  Maybe  military.  It has 
failed and was wondering what I might substitute for  it.  It was connected to 
two 807W's
 
Thanks in advance for any help provided.
 
73, Alan - KB2HEI