[Collins] Mystery Collins Modules

[Jim Whartenby]

Interesting, all of the formatting of my original post has been stripped so everything is now in one lump.  This makes the message hard to read.
AFAIK, this is the only reflector that I use that does this.Jim
I wonder why people argue over the 10% of their differences and ignore the 90% they agree on? 

    On Saturday, March 30, 2019, 2:15:40 AM CDT, Jim Whartenby <antqradio at sbcglobal.net> wrote:  
 
 The following assemblies came with a 310F-1 but don't appear to be part of that system.  Does anyone recognize any of the following?  Are manuals or schematics available?
MT-2119 (XW-1)/TContains at least one of the following audio amplifiers:Speaker Amplifier, AM1974 (XW-1)/T, CPN 522-1401-004Line Amplifier, U310-6, CPN 522-1364-00Line Amplifier, AM1975 (XW-1)/T, CPN 522-1403-004Were the above audio amplifiers used in the Birdcall system?
PP-2225 (XW-1)/TContains:PP-526H-1  What system used this power supply?
It appears to me that the 310F-1 Receiver-Exciter is functionally identical to the OA-1446 Exciter and/or a single receiver section of the OA-1447 Dual Diversity group all of which are automatically tuned just like the R-671/ARC-58.  
This information was found in the Collins Signal Volume VII No. 2 (Fall, 1958) in the Birdcall article.  It seems that the 310F-1 is also a rack mounted ground based version of the R-671/ARC-58 and most likely predates the KWT-6.  Can anyone verify this?Regards,Jim
I wonder why people argue over the 10% of their differences and ignore the 90% they agree on?
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