[Milsurplus] Two B-Cs

[William Donzelli]

> I'm sure, knowing the Signal Corps (and from canvas covers over some 
> items in the SCR-268-C photo) that the RC-148-C had a canvas cover or covers, 
> and probably transit cases for shipping the components, since from the 
> instructions, it wasn't installed wherever the 268 was built.  But no mention of them 
> in the manual.  Mind you, I don't have any of the other manuals on it.  There 
> was a Service manual (TM 11-1518) and probably an Operator's manual (TM 
> 11-1318).  But odds are they weren't mentioned there either.

No, they aren't. I have a pretty good selection of ground radar and IFF 
manuals (maintenance and otherwise), and the BG-s, and CH-s are just 
never mentioned.

One of the reasons there is so much of this stuff around is that the 
Signal Corps went spares crazy - every set typically had onsite spares. 
Not just parts, but the whole units. Each set came with quite a few extra 
transit boxes, just to hold that extra BC-1267 and RA-105. More CH- numbers. 

> BTW, this manual also covers the BC-412-A oscilloscope, including parts and 
> schematic.  Possibly because one had to be modified in order to install the IFF 
> set.

Yes. This is why the FM-82 is used and not the more standard FM-80. The 
BC-1293 is not needed, as the IFF marks are painted on the original 
(modified) BC-412 scopes. No BC-1293 antenna control is needed because 
being an SCR-268, the whole shootin' match moves with the antenna.

William Donzelli
aw288@osfn.org