[ARC5] ARC-5 modulator FS

[William Donzelli]

> And to counter-pick Young William, there were no BC-454's built, only 
> BC-454-A and BC-454-B (and to further confuse the French, the -B came in black 
> wrinkle and aluminum finish)

Put that NO in quotes, Mister. Someone eventually will show up with a
BC-454 or BC-454-T1.

> -B would likely only matter to a collector looking for something specific.  
> However, I can quote many instances where the model letter that lazy people 
> (which is just about everyone) drop are critical.  R-390/URR versus R-390A/URR.  
> AN-29 or AN-29-B versus AN-29-C.  BC-223 versus BC-223-A versus BC-223-AX.  
> SCR-188 versus SCR-188-A.  ARC-1 versus AN/ARC-1.  A.R.C. Type 12 versus 
> AN/ARC-12.  Etc.

Many in the Navy area as well. TAJ != TAJ-3 != TAJ-4 != TAJ-5 != TAJ-8 !=
TAJ-19. 

William Donzelli
aw288 at osfn.org