[ARC5] SCR-192?

[David Stinson]

Any chance anyone has the 1932 version of  TM 11-200,
which contains information on SCR-192?
Sig Corp museum says:  Transmitter (BC-192);
I think this may have been the first attempt at a transmitter for 
SCR-xx-183,
but don't understand why it got a later SCR number.
The original SCR-AA-183 instruction book, dated 7-25-1932,
also has SCR-AA-192,  but someone outbid me ;-)
73 Dave S.