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

[Larry H]

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
>
>