[Milsurplus] Re: [ARC5] Version A ATA Components??

[WA5CAB at cs.com]

I don't have anything in writing supporting this but my understanding from 
dim and unsubstantiated memory is that some prototypes were built but had 
nameplates changed before any were shipped.  I have also always assumed that the 
connector changes were made to the originals but I don't know that to be a fact.  
We do know that the BC-950's that were converted to T-23's had the rear 
connector changed.  I've actually had one or more converted and unconverted units.  
I do agree that they shouldn't have been called ARA/ATA, but there are 
numerous other examples of that mistake!

Not to pick nits but several of the connectors are also interchangable 
(PL-147, 148, 151, 152 and 156, their -A versions and their 4-digit versions).  Plus 
PL-153 (or variants) is used in some installations.  I've forgotten exactly 
which one(s).  Also the 77 or 3146 connector.

In a message dated 11/24/2007 11:50:19 AM Central Standard Time, 
kk5f at earthlink.net writes: 
> >...supposedly those are the Navy Type Numbers assigned
> >to what became AN/ARC-5 instead.  All of the entries in my
> >database mention plate and screen modulation specifically.
> 
> Thanks, Robert.  That makes sense.
> 
> It would be interesting to know if these "version A" ATA components use the 
> same connectors as the AN/ARC-5 transmitting system.  There are *only* two 
> electrical components of the AN/ARC-5 transmitting system that are directly 
> interchangeable with equivalent ATA components (DY-8, RE-2).  Different 
> connectors prevent inadvertent mixing of the visually similar but electrically 
> incompatible components.  Assuming that the same incompatibility existed between 
> standard ATA and "version A" ATA components, then it would seem better to 
> designate the new system with something other than "ATA" (like "ATE" or some 
> such).
> 
> I wonder if any of the "version A" components still exist.  Wouldn't those 
> be something to find!
> 

Robert Downs - Houston
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