[R-390] SSB R390A on eBay

[Dennis Wade]

Something strikes me odd here about the mod...I don't think its
original or factory.

Why would the BFO switch be labeled "LSB OFF ON BFO"?   Strange..did
they decide to crystal control/fix the LSB side but let the operator
hunt for the USB side?

I think this is a fixed (sorta) frequency BFO mod..not necessarily a
SSB mod.  For it to be a SSB mod it needs to have (IMHO) the extra
module between the front panel and audio deck with a 6U8 or 6EA8
product detector (or modern equivalent of course), and the associated
switching to preserve the AM/CW modes.  My Motorola has this extra
module.  The pics don't give a clear view so I can't say for sure, but
I think we just have a BFO mod here.

Chuck Rippel says the extra module is quite rare...I've seen/heard of
a few...I don't have a feel for how rare they actually are.  Comments?

Seems to be in reasonable physical shape though.

          Dennis

On 3/17/06, Barry <n4buq at knology.net> wrote:
> 5880089680
>
> Barry - N4BUQ
>
> ----- Original Message -----
> From: "Francesco Ledda" <frledda at verizon.net>
> To: <DJED1 at aol.com>; <n4buq at knology.net>; <r-390 at mailman.qth.net>
> Sent: Friday, March 17, 2006 4:32 PM
> Subject: RE: [R-390] SSB R390A on eBay
>
>
> > What is the e*** number?
> >
> > -----Original Message-----
> > From: r-390-bounces at mailman.qth.net
> [mailto:r-390-bounces at mailman.qth.net]On
> > Behalf Of DJED1 at aol.com
> > Sent: Friday, March 17, 2006 4:01 PM
> > To: n4buq at knology.net; r-390 at mailman.qth.net
> > Subject: Re: [R-390] SSB R390A on eBay
> >
> >
> > I did notice it- I thought it was strange that the sideband selector only
> > has USB and not LSB.  I assumed it was homebrew, but I could be  wrong.
> > Ed
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--
Dennis L. Wade
KG6ZI
Carmichael, CA