[Milsurplus] HRO RAS receiver

[Jack Antonio]

 Hi all,

I have an RAS-2 receiver which is contract NOs 79121 dated 22 Nov 40.  The manual copy
I have is for RAS-5 contract NXss 20976.

The back of the front cover lists changes made in the RAS-5. Mainly they are parts substitutions
due to the "exigencies of the War Program".  One mechanical change noted is the additon of
brushes to ground the main tuning dial to the front panel, this to "reduce the interference with
Receiver operation caused by neighboring ultra high frequency transmitters".

Hope this helps.

Jack

Jack Antonio WA7DIA
scr287@sbcglobal.net



----- Original Message -----
From: "Ray Fantini" <RAFANTINI@salisbury.edu>

Did a quick check on the RAS data plates last night, the oldest is the RAS-1 with a contract #
NOS-70176 date 7 Dec 39, the RAS-4 stuff is contract # NX-455 30 April 42 and the RAS-5 stuff is
contract # NXRS-20976 dated 7 Jan 43
Do not think their is any difference between any of the RAS series radios, or at least any I have
seen. did try the noise limiter kit and it dropped right into the location of the 6F8 tube and
worked fine, although the receiver appears to be a little more prone to overload on strong signals.
will post a copy of this on the millist to see if anyone their can shed any light on weather their
is any different between HRO RAS series.