[R-390] SSB-Modified R-390A

Mon, 14 Jul 2003 08:59:08 -0400

Hi All:

I didn't get the chance this weekend to remove the '390A from the rack to
photograph the mod.  Next week, maybe.  I'll post a URL when I get the
photos up.

73,
Jim
WA2MER

-----Original Message-----
From: federico [mailto:[email protected]]
Sent: Thursday, July 10, 2003 9:12 AM
To: [email protected]; R-390
Subject: Re: [R-390] SSB-Modified R-390A

Hi Jim and friends,
                   very interesting. I agree with you that a MOD done (well
done) by factory or from Army Lab can add value to the receiver in the same
way of some strange contracts (for example I have a 51J-4 manufactured from
Collins for Yougoslavian Press Agency TANJUG silkscreened in yougoslavian
language). Can you put on the web (or send by mail) a photo of your R-
390A/URR for a better evaluatiun.

73 de Federico IZ1FID

On Thu, 10 Jul 2003 08:30:40 -0400, Jim DiMauro wrote
> Hi All:
>
> I have a Collins-made R-390A S/N 756 from the very first contract
>
> (14214-PH-51).  It was modified to add SSB capability.  The BFO
> switch was changed from the "Off-On" to "LO-UP-AM-BFO" and the dial
> lock was removed and replaced with a "VFO Vernier" control.  The mod
> was very nicely done and works well, with screened lettering on the
> front panel, and there are no immediately obvious circuit additions
> from looking at the top of the chassis.  I don't know exactly what
> type of mod was done, but it's certainly not a typical hack job
> normally assosciated with military radio conversions by amateurs.
>
> I have three questions: where can I find a list and descriptions of known
> SSB
> conversions for the '390A so I can identify the mod?  Also, were
> there commercial conversions done by/for the government?  This radio
> came from an estate which included equipment from a US Army
> experimental SSB station AN/GRC-108 XC-1, so perhaps this radio was
> modified for the Army and not by a ham. Finally, does a
> "professional" SSB conversion add to or lessen the radio's value?  I
> guess it depends on the type of mod and who did it, but some
> thoughts along those lines would be appreciated.
>
> Thanx & 73,
> Jim
> WA2MER
>
> _______________________________________________
> R-390 mailing list
> [email protected]
> http://mailman.qth.net/mailman/listinfo/r-390

--
Open WebMail Project (http://openwebmail.org)