[ARC5] 274N's in 1942 (clarification/correction)

[WA5CAB at cs.com]

The earliest BC-375 manual that I have (on BC-375-C) is dated January 1939 
(day of month not given).  Strangely enough, there never appears to have 
been a manual done on the SCR-187 or SCR-287.  Only on the individual 
components.  But the date on the BC-375-C manual means that there were either three 
or four models of the transmitter built before January 1939 (number depends 
upon whether the first built after the BC-AA-191 was BC-191 or BC-191-A - the 
Signal Corps was inconsistant in this - some sets or components start at -A 
and some start unlettered).

In a message dated 7/3/2009 11:54:23 PM Central Daylight Time, 
arc5 at ix.netcom.com writes: 
> >(Interesting aside: The first production order of SCR-287
> >transmitters was # 1508-NY-41, so these two sets
> >were "joined at the hip" early on).
> This was not , AFAIK, the first production of BC-375.
> It was the first for use in set SCR-287
> 
> >....but has instead the small tag, screwed to the 
> >top in the center of the tag location
> >with *(two, not four)* phillips sheet metal screws. 
> 

Robert & Susan Downs - Houston
wa5cab dot com (Web Store)
MVPA 9480