[Boatanchors] Mystery National Receiver, NC-127D

[Richard Post]

Bob,

Does it look like the NC-120 (RAO series)?

My NC-120 is at <http://oak.cats.ohiou.edu/~postr/bapix/NC120RAO.htm>

The diversity setup using a pair of receivers and a control box in 
the middle was a fairly common military application in the fifties 
and late forties.  One typical "black box" control used the AVC / 
signal strength to select the receiver.  Have seen the military 
manual for the Hammarlund SP-200 series pair used in that fashion, 
each with crystal control similar to later SP-600-JX14.

Also received a note from an Argentinian describing a receiver that 
came from the Argentine post office. Had factory mods on an American 
receiver for dual diversity with unusual model number.  Tried to find 
the e-mail but could not.

Would like to see a pic of your NC-127D.

73,
Rich KB8TAD

Boatanchor Pix

<http://www.qsl.net/kb8tad>





At 11:07 AM -0400 6/29/04, rkerr wrote:
>I have an interesting old National receiver with no documentation, 
>labeled model number NC-127D.  It appears very similar to the 
>NC-101XA, but it's painted battleship gray and has a rack mount 
>front panel with handles.  There are more control knobs on the front 
>panel than the -101XA, and the S-meter is located at the upper left 
>corner of the front panel, rather than behind the near left side of 
>the tuning dial escutcheon as in the -101XA.  It tunes from 540 kHz 
>to 30 MHz.  The knobs are an off white color.
>
>A tag on the front says "Order number 2507" and gives a 
>manufacturing date of 6-1-45.  The serial number is "1".  I have it 
>from the former owner that the "D" stands for diversity, and that it 
>was designed to be part of a diversity reception system employing at 
>least one other receiver like it.  There is a coax connection on the 
>back for import/export of the local oscillator signal, but 
>unfortunately I have only one radio.
>
>Does anyone out there know anything about this radio?
>
>Bob
>WB4TGG
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