[R-1051] R-1051 module identification

[John]

My memory, based on newly installed R-1051's on the USS Morton in 1965,
is that the R-1051's were originally built with only 1 kHz step tuning.
The Navy then realized they needed 0.5 kHz steps for the carrier freq
of their SSB voice channels, and a field change was quickly done to
convert all existing units.  A R-1051A was the same radio, built with
the 0.5 kHz change from the factory.

Can anyone either verify this, or correct me if I'm wrong?

One of my enduring memories was when one of our three R-1051's failed.
The ET came up with his case of modules, replaced all the modules one at
a time, and it still didn't work.  Put the removed modules into the next
receiver over, all good.  I, a lowly RM2, tilted up the chassis, and 
spotted where one of the wires with connector pins had popped out of the
chassis mounted connector.

John
KK6IL

On 10/26/2014 6:55 AM, Nick England wrote:
> OK, I have started creating a chart of what modules are in what models
> http://www.navy-radio.com/rcvrs/r1051.htm#modules
>
> So far all the info is taken from manuals. Please provide any corrections,
> additions, comments, etc. Thanks!
>
> Cheers,
> Nick England K4NYW
> www.navy-radio.com
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