[R-390] Stewart Warner production numbers..?

[Bob Weiss]

FWIW, I have a Stewart-Warner R-390A here from the 1959 contract, with s/n
2211, just above the range on the "official" lists...

73,
Bob Weiss N2IXK

On Sun, May 29, 2022 at 11:08 AM Jim Whartenby via R-390 <
r-390 at mailman.qth.net> wrote:

> Larry
> Nick mentioned that Collins tracked all R-388's produced across all
> contracts with a sequential production number, I believe that Capehart and
> Stewart-Warner may have done the same thing.  I guess we will not know for
> sure until more nomenclature tags are removed and that area of the front
> panel is inspected.  EAC may have done something similar, but the
> production number is somewhere else on the main chassis.
>
> Nick and I exchanged emails years ago about an eBay photo of a R-390A.  It
> was missing the nomenclature tag but a Navy anchor inspection stamp was
> clearly visible where the tag would have been.  One of my R-390A's does
> have an orange triangle inspection stamp under the tag area, the other
> three do not.
>
> I don't know if Collins continued the sequential production number marking
> for the R-390 and R-390A.  If Collins did, than I could identify my
> tag-less R-390 as either Collins or Motorola built.
>
> Jim
>
> Logic: Method used to arrive at the wrong conclusion, with confidence.
> Murphy
>
> -----Original Message-----
> From: Larry H <larry41gm at gmail.com>
> To: Jim Whartenby <old_radio at aol.com>
> Cc: r-390 at mailman.qth.net <r-390 at mailman.qth.net>
> Sent: Sat, May 28, 2022 9:08 pm
> Subject: Re: [R-390] Stewart Warner production numbers..?
>
> Jim,  It looks like your R-390A numbers agree with Tom Marcotte's chart on
> our website.  That's interesting that the Capehart and Stewart-Warner had
> the ink stamp under the mfg tag, but not the EAC.
> Regards, Larry
> On Sat, May 28, 2022 at 12:11 PM Jim Whartenby via R-390 <
> r-390 at mailman.qth.net> wrote:
>
> LarryI have four R-390A receivers.  Two are EAC, one is a Capehart and the
> last is a Stewart-Warner.
> EAC, Nomenclature Tag S/N is 1165, Contract is FR-36-039-N-6-00189E
> EAC, Nomenclature Tag S/N is 1666, Contract is DAAB05-67-C-0155
> Capehart, Nomenclature Tag S/N is 2896, Contract is 21582-PC-61
> Stewart-Warner, Nomenclature Tag S/N is 185, Contract 20139-PC-60
> Looking beneath the Nomenclature Tags one can find, on occasion, an
> inspection stamp from the Government Source Inspector.  Usually Army,
> sometimes Navy.  Neither EAC had any markings under the tag but both the
> Capehart and Stewart-Warner had an inked stamped serial number.
> They are 2922 for the Capehart and 2576 for the Stewart-Warner so this
> might be another place to look for production S/N's.
> A question for Nick: I also have four R-390 receivers.  All have seen
> better days and are not complete examples so the idea is to make one or two
> working units from the four organ donors.  Three have nomenclature tags
> supplied by Collins.  The fourth has no tag so I have no idea who was the
> manufacturer.  If Collins also had a S/N on the main frame, where would it
> be located?
> Regards and have a great Memorial Day,Jim
>
> Logic: Method used to arrive at the wrong conclusion, with confidence.
> Murphy
>
>
> ______________________________________________________________
> R-390 mailing list
> Home: http://mailman.qth.net/mailman/listinfo/r-390
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:R-390 at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html