[R-1051] R-1051 Modules

[Geoff Fors]

Lee, there were test fixtures for the RF module and the 6-pack but I have
never seen any show up at the hamfests or the surplus market.  They are
labeled for AN/WRC-1 but they work on the 1051's as well.  It's possible
they are still in service at various depots.  As I recall they are a frame
which extends the whole module up about 6 inches.  I thought I had found a
set of the fixtures once but they turned out to be for the GRC-106...

The other modules used "service extender cables."  I once had dozens of
them, brand new, and sold them all via ads in Electric Radio Magazine in the
mid-1990's.  Some people make the cables out of scrap modules and R-1051
receiver frames, but neither are particularly common these days thanks to
the government's policy of crushing all these receivers rather than letting
them out surplus.  I believe you can order the rather strange DB- series
connectors with the coaxial inserts from Allied Electronics, but they are
expensive, relatively speaking.

If you haven't done so already, you might want to go through all the
electrolytics on the main frame with an ESR meter as some may be getting
quite dried up by now and that can induce some strange operation.  Dick
Smith used to sell a nice kit ESR meter at a cheap price but I understand
they have discontinued it; it was a Bob Parker design out of Electronics
Australia magazine.  Bob Parker has a website about these meters, I believe
he is now recommending the assembled and tested EVB brand meter out of
Portugal; they also have a website.  The EVB costs about three times what
the Dick Smith meter did, which was about 25 US Dollars.

Geoff
WB6NVH