[ARC5] TCS (& other equipment) spare/running parts?

[Henry Frederick Meiseles 'Meils']

The discussion about the (non)existence TCS xtal 
containers made me wonder whether there was a 
special set of spare parts and if so was there a 
special container akin to the WS-19 metal spare tubes 
(valves!) container  -- What was the situation for the 
Command Set series and the R-390A receivers?
I know the manuals of several of these rigs 
include a list of accompanying spare 
tubes/(valves)*.

Henry,
oz3o n2nr

*(Two nations, separated by  a common language:
  She put down my apartment so I knocked her flat.)