[Milsurplus] Non Collins built URC-32

[John Vendely]

Hi Jim,

I personally have never seen a URC-32 of non-Collins manufacture.  
However, other ground radio systems of the Collins "ARC-58 family" were 
manufactured by contractors other than Collins, so perhaps it's not 
surprising that you found a non-Collins manufactured example of the 
closely related URC-32. Other examples are the fixed-station HF receiver 
and transmitter, AN/GRR-13 and AN/GRT-12.  These were  slightly 
modified, remotely controllable, autotuned ground radio versions of the 
ARC-58, the receiver and exciter repackaged in the same telephone-system 
relay-rack style as the URC-32.  Some modules were interchangeable with 
the URC-32.  They were manufactured by Republic Electronics and possibly 
others...

73,

John K9WT


On 4/30/2022 6:53 PM, Jim Whartenby via Milsurplus wrote:
> Received a Frequency Generator to bring up to snuff.  This FG is very 
> clean, no indications like dust or smudges that one usually sees from 
> many hours of forced air cooling. No marks on the module mounting 
> screws or the minor dents and scrapes one usually sees when modules 
> are pulled and replaced.  This indicates to me that this unit is 
> either a virgin, has very low operating hours or it was operated in a 
> "Class 100" clean room!
>
> None of the modules in the FG have "Collins" stenciled near the module 
> part number.  Every module was made by LaPointe.  I have seen SMO's 
> built by Dittmore-Freimuth and mechanical filters built by them too 
> but I was not aware that a complete URC-32 transceiver was made by 
> anyone other then Collins.
>
> The LaPointe SMO behind the frequency indicator cover is a Model C but 
> there are no indications that the SMO has had any modifications 
> performed on it.  A quick check of the circuitry found that it appears 
> to be untouched.  It sill has B+ going through the two L/C filters.  
> It is as Collins originally designed it in the early 1960's.
>
> Trading emails with the owner, it appears the URC-32 rack also has a 
> LaPointe nomenclature tag as does the military manual that came with 
> this URC-32.  Has anyone else seen a LaPointe made URC-32 transceiver 
> or one made by anyone other then Collins?
>
> Jim
>
> Logic: Method used to arrive at the wrong conclusion, with 
> confidence.  Murphy
>
>
>
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