[R-390] "A" Versions of Military Receivers with/without Mechanical Filters.....

[Robert M. Bratcher Jr.]

At 11:36 AM 6/8/2003 -0700, you wrote:
> > Can you give me an example of a U.S. military radio
> > receiver
> > with the "A" suffix that does not have mechanical filters? Yours
> > Truly, Todd
> > Roberts WD4NGG.
>How about the TMC R-5007A/FRR-49(V). No mechanical filters.
>How about the Hallicrafters R-649A/URR. No mechanical Filters.
>Hoq about the R-274A. No mechanical filters.
>
>Need I say more?
>
>RICH  WA6KNW

R274A? Never heard of it. The R274 I've got is the mil version of the 
Hallicrafters SX-73 with no A on the label. Which reciever is the R274A?

What is the Hallicrafters R649? Never saw one....